They might put him through various physical challenges and battles to assess his strength and skills.
Well, in fanfiction, the Avengers might have Spider-Man face off against powerful villains or engage in strength-training exercises with them to determine his power levels. They could also analyze his web-slinging abilities and how far he can jump or lift objects.
The Avengers could find out who Spider-Man is in fanfiction by a trusted insider accidentally spilling the beans. Or perhaps a villain uses this knowledge to manipulate the situation and forces the truth to come out.
Spider - Man would likely be confused at first. He respects the Avengers and can't understand why they are suddenly after him. He might try to talk to them, to explain that he's innocent. For example, he could swing up to Captain America and start pleading his case.
Spider - Man would probably be shocked at first. He looks up to the Avengers and being kidnapped by them would be the last thing he expects. He'd likely try to talk his way out, using his quick wit and charm. He might start by asking why they're doing this and try to convince them that they've made a mistake.
Spider - Man would be very confused. He would feel betrayed because he thought the Avengers were heroes he could trust. He could start by asking them why they are doing this. If they don't give him a satisfactory answer, he might try to escape in a sneaky way, using his spider - like abilities to find a weakness in their capture setup while still trying to reason with them.
Spider - Man would probably be defensive at first. He's used to working alone most of the time, and being interrogated by the Avengers would seem unfair to him. He might crack some jokes to ease the tension, but also firmly state that he's a hero too.
Fanfictions sometimes create scenarios where Spider - Man from 'Homecoming' has to prove himself to the established Avengers. His youth and inexperience contrast with the more seasoned heroes. This can lead to interesting character development arcs, such as him learning from the Avengers' combat strategies and they in turn learning from his unique approach to fighting crime on a smaller scale.
It's highly unlikely that the Avengers, as fictional characters in their own right within the Marvel universe, would actually sit down and read Spider - Man fanfiction. They are usually too busy saving the world or dealing with their own personal dramas. Fanfiction is more of a concept for the fans in the real world.
Well, in the official Marvel lore, we don't see the Avengers sitting around reading Spider - Man fanfiction. But if we think about it in a more fun, what - if way, characters like Natasha Romanoff might read it to better understand the public perception of Spider - Man. Since she's good at gathering intelligence and understanding people, she could use fanfiction as a way to gauge how the general public, especially the fans, view the friendly neighborhood Spider - Man. And who knows, maybe Peter Parker himself would be horrified or flattered to know that some of the Avengers might be reading fan - created stories about him.
They often react with shock and grief. Some might immediately go into a rage, seeking revenge on whoever caused Spider - Man's death. Others may be paralyzed by the sudden loss, unable to function for a while.
Spider-Man is pretty strong. He has superhuman strength, agility, and the ability to stick to walls. He can lift heavy objects and fight off many villains.