Well, it's hard to pinpoint a specific one. Fanfiction is so diverse, and this kind of storyline could show up in many different works. Maybe search on popular fanfiction platforms using relevant keywords to find what you're looking for.
I don't think it'll necessarily meet your needs, but I'll try my best to recommend a novel that's most relevant to your description."I Am the Big Boss in front of Hermione" is a light novel by the author, Xiao Wen. It's a derivative doujinshi novel. The general plot of this novel is:
This book has a system, a dungeon, and a single female lead! Pursuing 100% of Harry Potter's worldview setting by mistake! And can accept the author's second creation setting, can be safe to eat! [Currently logged in: Zero's Servant, Fairy's Tail, Fate, One Piece, Death.]
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When I Lost My Way in This World was a fantasy novel written by the author, Sha 144. The general plot of this novel was:
People sit at home, and the stick comes from the sky. Harold, who was enjoying an ordinary life, was knocked unconscious in his own home. When he woke up, he was surprised to find that he had arrived in a world called Hinterlands. A world ruled by witches. He had a special ability, met friends, and had everything that he did not have in his original world. She was also involved in many storms and conspiracies…She wondered if she had done too many bad things in her previous life, which was why she had such a strange experience.
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"The Magician in the Movie World" was a fantasy-modern magic novel written by the author, Brother Xun. The general plot of the novel was:
(̄ ^̄): In fact, at first, when I found out that I had transmigrated into Harry Potter, I rejected it ~
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Afterwards?
(Jiuge Jiuge): Yeah, after that?
(*^▽^*)[Oh, it smells so good!]
In short, this is the story of a mage traveling in various worlds, or you can read it as a fan novel ~
[Note: The first world is of course Harry Potter. Of course, it may also be mixed with elements from other worlds. We will talk about the later worlds o(*^@^*)o]
Anyway, don't mind these details <(̄ ̄)<
Please start from the prologue ~(^^^)-Also, welcome to Karl's banquet hall, number: 522353109.
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The Return of the Transmigrator was an urban supernatural novel written by the author, an Extreme Angel. The general plot of the novel was:
Helise, a transmigrator who had returned from another world, had abandoned everything to return to Earth. She had unexpectedly discovered that this world was not as simple as she had imagined. The appearance of espers, vampires, monsters, cultivators, and so on gave Helise a new understanding of this world. Following the appearance of the angel, demon, and god, Helice began to question the truth behind her transmigration. When everything was revealed, the hidden truth was an astonishing secret…
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"Journey to Inhumans from Hogwarts" was a light novel by the author, I, who had diarrhea. The general plot of this novel was:
A soul who had transmigrated to a Chinese family in England. She had relied on the cultivation method recorded in Journey to the West to become stronger. There was no reason for a person to become stronger. Until that year, the arrival of an owl broke the peace and she suddenly discovered that her twin sister's name was Cho Zhang.
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This Hogwarts Has a Big Problem was a light novel by the author, Feng Xue Guan He. The general plot of this novel was:
One day, the Lord God discovered that all his Samsara travelers had been wiped out in the Harry Potter world.
This batch of Reincarnators couldn't even break through such a simple world.
It was a small problem. He would raise his level and send a higher level Reincarnator.
Why was it wiped out again?
It doesn't matter, I'll go directly to the strongest nine-star Reincarnator!
I, the sovereign expert, have dominated the heavens for countless years because I have relied on caution. No matter what the problem is, I will directly send out my strongest combat power to destroy you!
Eh?
Wait, who are you?
"You're the one who sent people to cause trouble in my world?" Ma Ke held the Sovereign in his hand.
And at Hogwarts…
"Harry, let's go for a night tour in the Forbidden Forest tonight," said Ron enthusiastically.
Harry: "Well, kill a few more Dark wizards."
"How dare you call me a Mudblood, Malfoy," said Hermione,"and cut me to the bone!"
The Reincarnators trembled in fear.
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The Book of Truth of Hogwarts was a light novel written by the author, Rest by the Cliff. The general plot of the novel was:
A member of a mysterious organization, in an accident, brought a book with magical power into the magical world of Harry Potter. As the first transmigrator in history to cross into Voldemort's arms, could he survive in this world? [Note: This book is about the Slytherin Snake.]
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The Harry Potter Catastrophe was a fantasy and modern magic novel written by Yu Ming. The general plot of the novel was:
An abnormal Magus! An abnormal world! An abnormal experience! An abnormal author!
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"The Amazing Magic" was a light novel written by the author, Song of Thorns. The general plot of the novel was:
The original name was HP Hogwarts, A Daily Life. It was a Harry Potter fan novel. [Description: On Dali's birthday, Harry Potter, who was working at home, received a letter from an unfamiliar person. The other party called him: [The Boy Who Lived] ps. Respect the original work, but there are private settings, pro-Slytherin, adjustment work, do not like to read. I'm currently updating Song Tan's Chronicles. Please support me!
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Harry Potter: Hello Dark Lord was a fantasy and modern magic novel written by the author, Crispy Noodles Sack. The general plot of the novel was:
<Warm Reminder> This book is not a Doujin novel in the traditional sense. There are many second creations. It can be seen as a new story in the guise of Harry Potter. Brothers who don't like this kind of novel experience can take a detour. Brothers who like different experiences can try to eat it. It has been explained that if you don't like it, don't spit it. [Description: I came to the world of Harry Potter, but unfortunately, I came 60 years earlier... I wanted to kill the Dark Lord before he grew up, but unfortunately, I became brothers with the Dark Lord... I wanted to touch fish in this world, but unfortunately, the flames of World War II swept across Europe... and!] Most importantly, there's something wrong with this world! Taboo, the ravings of the Old God, and the invasion of the Dark Side! Wasn't Harry Potter a children's book? This world was a little dangerous! Is it too late to buy a return ticket now? Waiting online is quite urgent! And where can I buy a return ticket?
Yes, there are quite a few. You can find them on various fanfiction websites like Fanfiction.net or Archive of Our Own. Some might explore an alternate universe where Cho and Draco interact in unexpected ways, perhaps in a Hogwarts where the houses are more integrated.
In some fanfictions, after the kiss, they become more awkward around each other at first. Harry might be worried about how his friends will react, especially Hermione who has been a bit critical of Cho in the past. Cho, on the other hand, might be worried about what her Ravenclaw friends think.
I'm not aware of any appropriate 'Cho Chang diaper fanfic' as this seems like a rather strange and inappropriate concept. Fanfic should generally focus on positive, respectful, and in - character portrayals, and this idea doesn't really fit that bill.
There are indeed some. A lot of them explore how Harry and Cho's relationship develops further into marriage. They might show how they balance their respective careers, like Harry's work in the Auror department and Cho's possible job in the field of magical creatures, all while maintaining their marriage.
One great 'Harry and Cho Chang fanfic' is 'The Choices We Make'. It delves deep into their relationship post - Cedric's death. Another one could be 'Cho's Perspective' which gives an interesting view of Cho's feelings towards Harry throughout the events at Hogwarts. And there's also 'A New Beginning for Harry and Cho' which shows a more hopeful and positive take on their relationship, with them working together to face new challenges at Hogwarts.
It's interesting because we can see different perspectives of their relationship. In fanfics, we might get to see Cho's side of things more clearly. For example, how she really felt about Harry while also dealing with Cedric's death. Also, it allows for different plotlines that could have happened between them but didn't in the original story. So it gives a sense of 'what if' which is always exciting for fans.
There are fanfictions that explore what would happen if Cho Chang had been sorted into Gryffindor instead of Ravenclaw. In these stories, her relationship with Harry Potter might have developed differently as she would have been in a more action - oriented and bold house. She could have been more involved in Harry's dangerous quests from the start.