One popular fanfiction idea could be that Hermione accidentally consumes a love potion meant for someone else. She then starts acting out of character, perhaps showing an excessive amount of affection towards an unexpected character. This could create chaos in Hogwarts as her friends try to figure out what's wrong and reverse the effects.
One popular fanfiction idea could be that Ginny accidentally consumes a love potion meant for someone else and Harry has to figure out how to reverse it while dealing with his own confused feelings. He realizes that his true feelings for Ginny are strong even without the potion's influence.
Another scenario might involve an old, forgotten love potion in the Hogwarts castle that Hermione stumbles upon during one of her research expeditions in the restricted section of the library. The potion activates when she touches it, and she starts having dreams about a mysterious figure. She becomes determined to find out who this figure is while also trying to keep her condition a secret from her friends. As she delves deeper into the mystery, she discovers a long - lost love story that has some connection to her own family history.
Harry Potter himself can be a central character in such fanfics. He might be the target of a love potion, either by accident or as part of a villain's plot. Since he's the main hero, he would then have to struggle with the false feelings while also trying to protect his friends and Hogwarts from any danger associated with the love potion situation.
In some 'love potion' Harry Potter fanfics, the plot might revolve around a love potion being used as a weapon. Maybe a dark wizard or witch uses a powerful love potion to manipulate a group of students into doing their bidding. Harry and his friends would then have to find an antidote and stop the villain's plan. This could involve a lot of adventure, like sneaking into the potions classroom at Hogwarts to find the recipe for the antidote.
There are also some original characters created in fanfiction who are potion geniuses. These characters can bring new storylines and perspectives to the world of Harry Potter potions. They might have unique ways of brewing potions or discover new potion recipes that change the magical world.
It could be a jealous student. Maybe someone who has a crush on the same person Harry is attracted to in the story. They see Harry as a rival and figure that by poisoning him with a love potion, they can make him look foolish or get him into trouble.
Well, it's quite possible. Given the magical nature of the 'Harry Potter' universe, a gender reveal potion fits right in. There are fanfictions that explore all sorts of unique magical concepts. However, not all fanfictions are easy to find. You might have to dig a bit deeper, use specific search terms related to the potion, the characters you think might be involved in such a story, etc. on the fanfiction platforms.
A deep understanding of ingredients. A character who really knows what each ingredient does and how they interact is often seen as a potion genius. For example, knowing that a certain herb can counteract the negative effects of another ingredient in a complex potion.
Hermione Granger might also be a main character. Given her intelligence and thirst for knowledge, she could be researching the truth potion, its properties, and how to counter its effects if it's being misused.