You can start by looking on popular fanfiction websites like Archive of Our Own (AO3) or Fanfiction.net. Use the search function and type in 'Reader Goes to Hogwarts'. Then, you can sort the results by popularity or rating. Reading the reviews left by other readers can also give you an idea of which ones are worth checking out.
One interesting 'Reader Goes to Hogwarts' fanfiction could be the one where the reader has unique magical abilities that are not common in the original Hogwarts world. For example, they can control time in a different way than Hermione's time - turner. Another great one might be where the reader is sorted into a house that they never expected and has to adapt to the new environment and the values of that house.
The reader - character can influence the storyline by their choices. For example, if they choose to befriend a certain group of students, it can change the social dynamics at Hogwarts. They can also influence it through their academic performance. If they excel in a particular subject, it might lead to new opportunities or quests within the fanfic.
He might use his spider - powers to outperform in Quidditch. His agility could make him an excellent seeker, zipping through the air to catch the golden snitch much faster than others.
Well, there's the 'Sorting Dilemma' trope. Since the reader is new to Hogwarts, there's often a big deal made about which house they'll be sorted into. Some fanfics also have the 'Hidden Talent' trope. The reader - character suddenly discovers they have a unique magical ability that no one else has. And then there's the 'Mystery at Hogwarts' trope. Strange things start happening at the school and the reader has to solve them.
Well, he might show off some really old - fashioned but extremely powerful magic that would shock everyone at Hogwarts. Maybe he'd befriend Harry Potter and teach him some ancient spells that could defeat Voldemort in a whole new way.
The plot might involve Naruto making friends with some of the Hogwarts students. He could show them his unique fighting style, like the Rasengan, and they in turn could teach him some basic spells. For example, Hermione could be intrigued by Naruto's chakra system and Naruto could be amazed by her knowledge of magic. There could also be a conflict where Naruto has to face some dark wizards using his ninja abilities, while also learning how to use magic in a pinch.
There could be a character like Tom, a Smeltings student who is very disciplined but curious about the magical world of Hogwarts. He might be the main character who drives the story forward as he experiences all the new things at Hogwarts.
In the 'sakura goes to hogwarts fanfiction', it could be that Sakura is a transfer student. She would face the challenges of adapting to the different magical system in Hogwarts. For example, she has to learn about potions and spells in the Hogwarts way. Along the way, she might discover a hidden mystery in Hogwarts that only she, with her special background, can solve. Maybe it has something to do with an ancient artifact that links her world to Hogwarts.
Well, it could be about Mal, who might be a new student at Hogwarts. Maybe Mal discovers a hidden magic ability that no one else has. He could make new friends and together they face some sort of mystery in the castle, like a secret room that holds an ancient magic that's in danger of being misused.