I think Thor would have a strong bond with Fem Harry. He comes from a world of magic himself, so he would understand her magical abilities better than some of the others. Also, his big - hearted nature would make him very protective of her.
Black Widow could form a strong bond with Fem Harry. Both of them have had difficult pasts. Black Widow could help Fem Harry deal with her traumas from the wizarding world. They could also train together, with Black Widow teaching her spy and stealth skills, and Fem Harry sharing her magical knowledge for when they are on secret missions.
One plot point could be the Avengers training Fem Harry in their ways. For example, Captain America could teach her about leadership and physical combat skills, while Iron Man might introduce her to advanced technology. On the other hand, Fem Harry could teach them about magic, like how to use protective spells. This exchange of skills and knowledge could be a major part of the story. Also, her past traumas from the wizarding world might make the Avengers more protective of her, adding an emotional depth to the story.
There might be a fanfic where fem Harry Potter teams up with Fred and George, and then they all end up in the Avengers' world by accident. The twins could use their Weasley - like pranks and creativity to mess with the Avengers a bit, while Harry uses her powerful magic. For example, Fred and George might create some enchanted items that the Avengers are completely baffled by, and Harry could use spells to defend against enemies the Avengers find difficult to handle.
There's also 'Magic Meets Superpowers: Fem Harry Potter x Avengers'. This one dives deep into how the two universes' rules work together. The fem Harry Potter character has to adapt to the new world while also showing the Avengers what magic can do. It's full of unexpected twists and turns that keep you hooked from start to finish.
Harry would probably be a bit overwhelmed at first. He's used to the structured life at Hogwarts, but living with the Avengers would be very different. He'd have to get used to the high - tech environment and the non - magical ways of doing things. But he's a quick learner, so he'd start to adapt by learning from the Avengers. For example, he'd learn how to use their communication devices.
Well, it could be really interesting. Tony Stark would probably introduce Harry to all kinds of high - tech gadgets. Maybe he'd give Harry a super - advanced broomstick or some kind of magical - tech hybrid device. Steve Rogers would teach Harry about honor and standing up for what's right in a more practical way compared to what he learned at Hogwarts. Natasha could train Harry in combat skills, both physical and mental, which would be a great addition to his magical abilities.
A really creative plot could be that fem Harry Potter has a special connection to an Infinity Stone in the Avengers' universe. Fred and George, being curious as always, follow her there. They then have to work together to keep the stone from falling into the wrong hands. The story could involve lots of magical battles combined with the epic fights from the Avengers movies.
Thor would be a likely candidate. Since he is Loki's brother, he already has a connection with him. Thor might be the one to convince the other Avengers to give Loki a chance and be the first to reach out and try to befriend him in this new situation.
There are quite a few out there. One popular one might be on platforms like Archive of Our Own. You can search for it using those key words and you'll likely find some interesting stories that combine the magical world of Harry Potter with the superhero awesomeness of the Avengers, often with a female Harry Potter character who is quite powerful, almost godlike in nature.
Fem Harry Potter might be a strategist. Given her experiences in fighting Voldemort and his followers, she has a wealth of knowledge about facing powerful and cunning enemies. She could come up with plans that combine both magic and the Avengers' combat skills to take on threats.
Well, in some of these fanfictions, Fem Harry Potter might have a really interesting dynamic with the Avengers. She could be like a little sister figure to them. They'd protect her from the threats of the wizarding world while she helps them with her knowledge of magic, like how to deal with magical creatures that cross into the normal world.