Maybe Hermione, with her Phoenix powers, joins the Avengers and uses her intelligence to help them solve complex problems.
Well, perhaps the phoenix is actually a guardian of a powerful magic that only Hermione and Severus can unlock together. But there's a catch. They have to overcome their initial distrust and dislike for each other. This would lead to a lot of tense and interesting scenes as they try to figure out how to work together without killing each other first.
There could be. A good place to start your search is AO3. It has a vast collection of fanfictions. You may need to use different search terms related to Hermione, Phoenix, and Avengers to narrow down the results. Sometimes the fanfictions might be tagged in a way that isn't exactly as you typed, so be a bit flexible with your search.
One possibility could be that Hermione's intelligence would blend really well with the Avengers' skills. She could use her vast knowledge of magic to assist in situations where the Avengers' technology or brute force might not be enough. For example, she could use spells to disable high - tech security systems during a mission or heal the Avengers' wounds more quickly than normal medical means.
Well, it could be about the Avengers having to take care of a baby. Maybe they find the baby during one of their missions and have no idea what to do at first. They might struggle with changing diapers, feeding the baby, and making it stop crying. But in the end, they all grow to love the baby and it becomes like a little mascot for the team.
One possible plot could be that Naruto discovers he has phoenix - like powers when he is in a life - threatening situation. He then has to learn to control these new powers which are linked to fire and rebirth.
The plot could involve the trio arriving at Avengers Tower in search of something. Perhaps they are looking for a magical artifact that has ended up in this strange new place. Along the way, they interact with the Avengers. Ron might get into some comical situations, like accidentally triggering one of Stark's inventions. Harry could use his skills in combat and leadership, and Hermione would be the one trying to figure out how to bridge the gap between magic and technology. They could end up teaching the Avengers some magic spells while learning about teamwork from the superheroes.
One possible plot could be that Hermione, as a Lycan, struggles to hide her identity within the Hogwarts community. Fleur, being perceptive, might notice something off about Hermione. Maybe Hermione is afraid of being discovered and ostracized, while Fleur, having her own experiences with being different (as a Veela), tries to help Hermione come to terms with her new lycanthropy. They could form a strong bond as they both deal with the challenges of being 'other' in the wizarding world.
In this fanfiction, Daisy might have some initial struggles to fit in with the Avengers. She could be from a different background or have a different approach to fighting. But as time goes on, she starts to bond with the team members, like sharing combat strategies with Black Widow or having a friendly rivalry with Thor in terms of strength. And she eventually becomes an integral part of the team.
It could involve the next - generation heroes facing a new and powerful villain that the original Avengers couldn't defeat. Maybe they have to use new powers or technology.
Well, one possible plot could be that during a big battle where the Avengers and Spiderman are fighting side by side against a powerful enemy like Thanos. Spiderman, being young and perhaps a bit over - eager, jumps into a dangerous situation without proper backup. He gets injured while trying to protect an Avenger, say Captain America. This could lead to a lot of guilt among the Avengers for not being able to protect him better and also Spiderman having to deal with his own physical and mental recovery.