Some of them would be entertained. Iron Man might laugh at the strange spells and potions. Hulk might not understand much but could enjoy the action parts if there are any. Thor could be curious about the magic and how it compares to his Asgardian powers.
The Avengers' response to Harry Potter fanfiction would be quite interesting. Thor, being from a world of gods and magic - like powers, might find some similarities and differences. He could compare the wizarding magic to his own abilities. Tony Stark, with his scientific mind, might be intrigued by the idea of magic that doesn't follow the laws of science as he knows them. He could try to find a scientific explanation for it in his head. Clint Barton might be the one who just reads it for fun and shares the funniest parts with the rest of the team.
The Avengers' reactions would be diverse. Captain America would likely approach it with an open mind, trying to understand the new world presented. Black Widow would look for any strategic elements in the fanfiction. She could learn from the way the characters in the story handle difficult situations. Hawkeye might be more laid - back about it and just enjoy the story for what it is. The different personalities of the Avengers would lead to a wide range of reactions to the Harry Potter fanfiction.
Tony would likely laugh at some of the more out - there plot ideas. He'd probably think he could come up with better technology than what's in the fanfic. Steve would be more open - minded and might enjoy the creativity. Thor would be like 'This is not like any Midgardian story I've heard!'.
Some Avengers might be amused. For instance, Tony Stark would likely find it a fun distraction from his usual high - tech world and might even make sarcastic comments about the plot or characters. He could say something like 'These wizards should really upgrade their transportation - brooms? Seriously?'.
The Avengers' reaction would be a mix of caution and curiosity. Hawkeye might keep his arrow aimed at Harry, ready for any sudden moves. Black Widow would be using her skills to read Harry's body language and try to figure out if he's lying. The Hulk might be held back initially, but if Harry made any sudden or 'threatening' moves, things could get really hairy. Overall, they'd all be on high alert until they understood that Harry was not an enemy but a young wizard with his own set of skills and a good heart.
He could be shocked. Maybe there are some fanfictions that take a very dark turn or have unexpected pairings that he never thought of. He'd probably need some time to process such strange ideas. And he might also be curious to see how far the creativity of the fans can go. He might even get some new ideas about his own life from reading some of the more imaginative fanfictions.
They would also be very protective. Tony Stark, for instance, would use his wealth and technology to give Harry a safe place to stay. Steve Rogers would offer his moral support and train Harry to be strong both physically and mentally. Natasha Romanoff would teach Harry self - defense skills. All of them would work together to make sure Harry never gets abused again.
Draco Malfoy would probably be outraged at first if he read fanfiction that showed him in a positive light towards Harry and his friends. He's so used to being on the opposite side, but then he might secretly be a bit flattered by some of the more complex characterizations of him.
He might be shocked. The fanfiction could have ideas that are completely contrary to his understanding of the future in the wizarding world.
If the Avengers read Naruto fanfiction, different members would have different reactions. Bruce Banner might study the way the characters control their inner power, like how Naruto controls the Nine - Tails' chakra. Steve Rogers might be more focused on the moral lessons in the stories. He would look for similarities and differences between the values in the Naruto world and their own. Natasha Romanoff could appreciate the complex relationships between the characters, just like she values her relationships within the Avengers. And Clint Barton would probably enjoy the action - packed parts, imagining how he could use some of the ninja skills in his own battles.
Some of them might be amused. For instance, Hulk could find it funny if Godzilla was shown as being weak in the fanfiction. He might laugh and say 'That big lizard not so tough!'.
They'd probably be very entertained. Thor is a larger - than - life character, and fanfiction often takes things to the extreme, which would be a source of amusement for the Avengers.