Well, it could be really interesting. Tony Stark might be intrigued by the tech in Big Hero 6 and start making comments about how he could improve it or integrate it with his own inventions. Steve Rogers would probably be a bit confused at first with all the modern and fictional elements but would soon get into the spirit of the story. Thor might find the whole concept of fanfiction strange but would enjoy the action parts.
It could be really exciting. Maybe the Avengers could visit San Fransokyo and be amazed by the high - tech there. Hiro could show them Baymax and they might collaborate to fight a new super - villain that threatens both their worlds.
The fanfiction titled 'Big Hero 6: The Next Chapter' is quite popular. It continues the story of the team, introducing new villains and challenges. The author does a great job of expanding the Big Hero 6 universe while still maintaining the charm and humor of the original. It's full of action - packed scenes and some really cool tech - related ideas, just like in the movie.
You can try some fanfiction websites like Archive of Our Own (AO3). It has a large collection of Big Hero 6 fanfictions that you can read for free. Just search for 'Big Hero 6' in the search bar on the site.
There could be some Avengers who wouldn't be into it. For instance, Bucky Barnes. He's been through a lot and might not have the patience for what he could consider a frivolous fan - created story. He's more focused on his own journey of recovery and dealing with his past. However, it also depends on his mood and if the others convinced him to give it a chance.
The Hulk might not care much about the quirk system itself but would be more interested in finding opponents with strong quirks to fight. Black Widow would be very observant. She would study how people with quirks are trained and how they use their abilities in combat situations. She might even try to adapt some of their techniques for her own fighting style. Hawkeye might be interested in quirks that could enhance his archery skills or give him new ways to aim and shoot.
Well, in such a crossover, the Avengers could meet the Big Hero 6 team in San Fransokyo. Maybe Iron Man would be impressed by Hiro's tech skills and offer to collaborate on some new inventions.
Well, different characters might have different reactions. Some characters could be amused by the creative interpretations in the fanfiction. They might enjoy seeing new storylines and character developments that the fans come up with.
There could be a new tech - savvy kid who idolizes Hiro and wants to join the team. This character might bring in fresh ideas and a different perspective on using technology for good.