She could fit by being a transfer student to Hogwarts. She'd come with her own set of values and skills from her Polynesian upbringing. Her loyalty to her family and people would be a strong trait in the wizarding world. Just like she was determined to save her island in her own story, she'd be determined to uphold the values of Hogwarts and fight against any dark forces.
It could be really interesting. Imagine Moana in the wizarding world. She might be a powerful witch with her own unique magic related to the ocean. For example, she could use her connection to the sea to create powerful water - based spells. Maybe she'd attend Hogwarts and be sorted into Gryffindor for her bravery in facing the unknown on her ocean voyages in her own story.
One common theme is the clash and fusion of different cultures. The Polynesian culture of Moana and the wizarding culture of Harry Potter often collide in these fanfictions. For instance, the different kinds of magic, like Moana's connection to nature and the more spell - based magic in Harry Potter.
I'm not entirely sure specifically what 'harry potter is fit fanfiction' is about without reading it. But generally, it could be a fan - created story where the author imagines Harry Potter in a fit or physically capable state, perhaps in new adventures that show off his strength or fitness in some way.
One possible plot could be that Moana's island is threatened by dark magic from the Harry Potter universe. Harry, Hermione, and Ron could be transported to Moana's world while on a mission to stop the spread of this dark magic. They would team up with Moana to use her knowledge of the ocean and the island's magic, along with their own wizarding skills, to fight off the dark forces. Maybe they'd have to face off against a wizard who has enchanted some of the sea monsters in Moana's world.
In a Harry Potter - Moana crossover fanfiction, the magical creatures in the Harry Potter world could interact with the spirits in Moana's world. For instance, a Hippogriff could fly over Moana's island and be seen as a strange new creature. Or the Maui's fishhook could have some sort of magical connection with a powerful wand in the Harry Potter universe. The characters' personalities would also make for great combinations. Hermione's intelligence and Moana's determination could lead them to solve some big mystery together that involves both their worlds.
It could be really interesting. Maybe Harry Potter uses his magic to help Moana on her journey. For example, he could use a spell to calm the rough seas she sometimes faces. Or Hermione could use her vast knowledge to figure out some of the mysteries in Moana's world that even she doesn't understand yet.
She could be a transfer student. Just imagine, Leah Clearwater, with all her strength and unique abilities from her own world, arrives at Hogwarts. She might struggle at first with the new rules and magic, but her determination and loyalty would make her a great addition to the Hogwarts crew. For example, she could use her enhanced senses to detect hidden threats or secrets in the castle.
Emmett could be a new kind of ally for Harry. His physical prowess as a vampire would be a great asset. For instance, in a battle against Death Eaters, he could take on multiple opponents at once. He might also introduce some new concepts from the vampire world into the wizarding world, like different ways of sensing danger.
In fanfiction, Daryl Dixon could be a time - traveler who ends up in the Harry Potter universe. He'd be confused at first but quickly adapt. He could end up being a mentor to some of the younger students, showing them how to be tough and resourceful. His knowledge of tracking could be used to find hidden magical items or enemies. And his loyalty and sense of justice would make him a great ally to Harry and his friends.
Lady Sif might be on a quest in the Harry Potter universe. Maybe she's looking for a powerful magical artifact that has found its way to the wizarding world from Asgard. In her search, she teams up with Harry and his friends. They help her find the artifact, and in return, she helps them with their fight against Voldemort or other dark wizards.