Well, one possible plot twist could be that Harry discovers the new school has a hidden magical artifact that is both a great power source and a danger. Another could be that the teachers at the new school are secretly working for an old enemy of Harry's. Or perhaps Harry finds out he has a long - lost relative among the students at the new school.
He could make friends with a shy but extremely talented wizard who has been overlooked by others. Maybe a girl who is really good at potion - making but is too introverted to show off her skills. Another new friend could be a joker - type character who always lightens the mood with his funny magic tricks. And there might be a tough - looking guy who is actually a big softie inside and becomes Harry's loyal friend.
When Harry changes schools in fanfiction, his relationships take on a whole new dimension. His bond with Ron and Hermione would face a significant strain. There would be a mixture of emotions - sadness, confusion, and maybe even a bit of resentment from them. On the other hand, Harry would enter a new social arena. He might encounter students who are more competitive or more laid - back compared to Hogwarts. His relationships with them would depend on how he presents himself. If he's seen as the hero from Hogwarts, some might be intimidated. But if he's humble, he could build deep friendships. His relationship with the wizarding community as a whole would also shift. He'd be part of a different school's reputation, and this could either enhance or complicate his standing in the wider wizarding world.
One possible plot could be Hermione transferring to a wizarding school in a different country. Maybe she discovers new types of magic there. For example, in a school in Asia, she might learn about magic that is more in tune with nature and has different incantations. Another plot could be that she changes schools due to a conflict at Hogwarts. Like there's a new dark magic threat that the Hogwarts faculty can't handle properly, so she's sent to a more secure school where she has to adjust to new rules and make new friends. And she could also be forced to change schools because of a false accusation at Hogwarts, and then she has to prove her innocence while also adapting to her new school environment.
She could make friends with a shy but brilliant wizard who is an expert in ancient runes. They bond over their shared love for knowledge and research. Another new friend could be a bold and adventurous witch who drags Hermione into all sorts of escapades around the new school. There might also be a kind - hearted half - elf student who helps Hermione adjust to the new school's unique culture.
One good small change could be in the character development. For example, Neville could start showing his courage a bit earlier in the fanfiction. This would add an interesting twist as it would make the story deviate slightly from the original in a positive way. It could also change the dynamics within the group of friends at Hogwarts.
In some fanfiction, Harry changes his life by changing his attitude towards his enemies. Instead of always being on the defensive, he tries to understand them. For instance, he might reach out to some of the children of Death Eaters and tries to show them a different path. This not only changes his relationship with his former foes but also earns him respect from both sides of the conflict. It also changes the way the wizarding world perceives him, from a simple hero to a peacemaker.
Some Harry Potter - focused forums may also have users sharing their 'harry changes fanfiction'. These can be a bit more niche and might require some digging around, but you could find some unique and interesting stories that way.
One popular 'harry changes fanfiction' could be those where Harry's personality changes due to a magical accident. For example, he might become more confident and outspoken. Another type could be where he changes his appearance through a new spell and how that affects his relationships at Hogwarts.
In fanfiction, Harry might change the social structure at Hogwarts. He could encourage more friendships across house boundaries. By doing so, he breaks down the long - standing barriers between the houses. This would lead to a more harmonious and collaborative environment at the school, with students from all houses working together on projects and sharing knowledge.