Well, he might encounter different kinds of magic there. Salem has its own history of witchcraft. Maybe he'll meet new witches and wizards who practice magic in a different way from what he's used to at Hogwarts. He could also discover new magical creatures or spells specific to the Salem area.
In a fanfiction where Harry Potter goes to Salem, he could be in for a big cultural shock in the magical world. The magic in Salem might be more intertwined with the local history and folklore. He might find that the way magic is taught and passed down is different. There could be a magical school or group in Salem that has its own set of rules and traditions. Harry would have to adapt to this new environment while still being true to himself. He might also find some ancient magical artifacts in Salem that are related to the Salem witch trials, and these artifacts could hold great power or secrets.
One possibility could be that Fem Harry Potter is sent to Salem for a magical exchange program. There, she discovers new forms of magic unique to Salem's witch community. She might make new friends and enemies alike as she tries to adapt to their different magical practices while also facing some challenges from the more traditional Hogwarts way of doing things.
If Harry Potter goes to Salem in fanfiction, the story would take on a whole new dimension. Firstly, the magic system might be different. Salem's magic could be more earth - based or have different elemental aspects compared to Hogwarts. Secondly, the relationships he forms would be different. He could meet characters who are more superstitious or have a different view of good and evil. Thirdly, the overall plot could revolve around Salem's historical events, like the witch trials, and Harry might have to find a way to right the wrongs of the past in the context of the Salem magical community.
There could be a young Salem witch named Lily. She befriends Fem Harry Potter and shows her around Salem. Lily could be very knowledgeable about the local magic and help Fem Harry Potter understand the differences between Hogwarts magic and Salem magic.
Well, he might use his magic in ways that Camelot has never seen. Maybe he'd help King Arthur with some tough battles using spells like Expelliarmus. He could also introduce the wizards' world to the knights, which would be really interesting.
Well, he might be really confused at first. Storybrooke has its own set of magic and rules that are very different from the wizarding world. He could start exploring and find some similarities between the magic there and his own. Maybe he'd team up with some of the characters in Storybrooke to solve problems or fight against a common enemy.
In such a fanfiction, Harry might go to Voldemort to try and reason with him. Maybe he believes there's a chance to end the war without more bloodshed. He could offer Voldemort a way out, like exile instead of death.
Well, he might use his magic to adapt to the zero - gravity environment. Maybe he could create some sort of magical shield around himself to protect from radiation. And he could encounter strange alien creatures that he tries to understand using his knowledge of magic and the wizarding world.
In this fanfiction, Harry might go to Diagon Alley to buy new school supplies. He could visit Ollivander's to get a new wand or Flourish and Blotts for some interesting magic books.
Well, he might encounter new magical creatures unique to PT. Maybe he'll learn some different spells or forms of magic there.
He might use magic to enhance his workouts. For example, he could use a spell to make the weights lighter when he's starting out and gradually make them heavier as he gets stronger. It would be really cool to see him combine his wizarding skills with gym exercises.