One possibility is that in an alternate universe, the wizarding world has different gender norms and Harry is used to wearing a dress as part of his daily attire. This could explore how his character develops differently, how his relationships with others change, and how the overall story of Hogwarts and the fight against Voldemort might be altered in this new context. He might face different challenges and gain unique perspectives due to this cultural difference.
Perhaps in the fanfiction, there's a magical event where everyone has to swap genders for a day as part of a spell gone wrong. Harry then has to deal with wearing a dress and all the new experiences that come with it, like different ways of moving, sitting, and even the reactions of his friends like Hermione who might find it hilarious or Ron who might be a bit shocked at first.
It could be a story about a bet. Maybe Draco dares Harry to wear a dress, and in the process, they start to see each other in a new light and develop an unexpected friendship or more.
It could be Malfoy. He might make fun of Harry for wearing a dress and try to use it to humiliate him in front of the whole school, which would then lead to a conflict between them that goes beyond the usual rivalry.
In Harry Potter fanfiction, the dress code often follows the general style in the original books. Hogwarts students typically wear robes, which can be black, or in their house colors for special occasions. For example, Gryffindors might have red and gold accents on their robes. Teachers usually don robes as well, often more elaborate ones. There are also dress codes for formal events like the Yule Ball, where students would wear dress robes, with the girls in gowns and the boys in smart suits or dress robes.
The plot could involve a situation where a new form of dark magic is unleashed in the wizarding world, which spreads like wildfire and causes destruction similar to 911. The Ministry of Magic is caught off - guard. Hermione, with her vast knowledge, starts researching a way to counter this magic. Meanwhile, Ron and Harry lead the effort to protect the civilians. They set up shelters in places like the Room of Requirement and use Patronuses to guide people to safety. As they dig deeper, they discover that this dark magic was a planned attack by a long - hidden dark wizard group who wants to take over the wizarding world.
One possible plot could involve a group of spiders that have been enchanted by a dark wizard. These spiders start attacking Hogwarts students. Harry, along with his friends Hermione and Ron, would need to find the source of the enchantment and break it to save the school. They might have to explore the Forbidden Forest more deeply and face their fear of spiders to do so. This would combine the elements of adventure, mystery, and the existing spider lore from the Harry Potter series.
The plot could involve Catwoman being drawn into the wizarding world by some mysterious magical force. She might start out as an outsider, trying to figure out how things work. Maybe she gets involved in a plot to steal a powerful magical object, but along the way, she starts to have a change of heart and decides to help the good guys instead.
A plot could be that Gaster has a connection to the Forbidden Forest in Harry Potter. He might be the source of some of the strange and dangerous creatures there. As Harry and his friends explore the forest more, they start to notice Gaster's influence. Gaster could also be using the forest as a way to try and get back to his own world or to gain power in the Harry Potter universe. This would lead to a series of adventures and battles as the characters try to either stop Gaster or understand his motives.
In this fanfiction, the plot could center around Harry Potter arriving in Tamriel during a time of great unrest. He discovers that there are parallels between the magical hierarchies in Tamriel and Hogwarts. He could get involved in the political struggles of the various factions in Tamriel while also trying to find a way back home. Along the way, he might teach some of the Tamriel mages about some of the more advanced magic he learned at Hogwarts, like Patronus Charms, and in return, learn about Tamriel's unique magical artifacts and how to use them.
One possible plot could be that Harry discovers that the wizarding world was actually created by androids in the far future as a sort of historical experiment. So he has to use his magic skills to break free from the control of these androids who are now trying to manipulate the wizarding world for their own purposes.