The main antagonists could be the official Avengers themselves. Since Peter Parker has joined the rogue Avengers, the main Avengers group might see them as a threat to the order they are trying to maintain. They could try to stop the rogue Avengers from achieving their goals, which would put them in direct conflict with Peter and his new allies.
It could be some new supervillain or a powerful organization that the rogue Avengers are trying to oppose, but the official Avengers don't believe in their methods. So, while the rogue Avengers are fighting this real evil, the official Avengers are trying to stop them, making the official Avengers seem like antagonists from the rogue Avengers' perspective. And Peter has to deal with this complex situation where he has to choose between what he believes is right and his loyalty to the original Avengers.
Another possibility for the main antagonists in this fanfiction could be a secret group within the superhero community. This group could be pulling the strings behind the scenes, making the official Avengers act in a way that the rogue Avengers oppose. Peter and the rogue Avengers might discover this group's existence and try to expose them, but the official Avengers, who are being manipulated, end up trying to stop the rogue Avengers from getting to the truth.
Well, perhaps the plot could involve Peter Parker feeling disillusioned with the main Avengers group for some reason. Maybe he disagrees with their new leadership or a particular decision they made. So, he decides to join the rogue Avengers. They might be on a mission to expose some hidden secrets within the superhero community that the official Avengers are trying to keep under wraps. And Peter, with his unique abilities and sense of justice, could play a crucial role in their operations.
If Peter Parker joins the Avengers in fanfiction, it would change the team dynamics significantly. Peter is used to operating on his own in Queens, but with the Avengers, he'd have to learn to work as part of a much larger and more powerful team. He could introduce the Avengers to his street - level knowledge, which might be useful when dealing with villains who operate in the shadows. His relationship with Aunt May could also play a role, as the Avengers might need to protect her from any potential threats. Plus, his growth as a hero would be accelerated by being around such experienced and powerful teammates.
Well, in such a fanfiction, the Rogue Avengers might initially be suspicious of Peter Parker. They could mistake him for an enemy or a spy at first. But then, as they get to know him, they might see his potential and start to train him in their own unique ways. Maybe they'll share their different experiences from being on the run, which could be really eye - opening for Peter.
In this fanfiction, Peter Parker might initially be in awe of the Rogue Avengers. He could try to prove himself to them, showing off his Spidey skills. Maybe they start off distrusting him, seeing him as just a kid, but as they face challenges together, they come to respect his abilities and his big heart.
Probably Steve Rogers. He has that all - American hero charm and he values loyalty and courage, which Peter clearly has. Steve would recognize those qualities in Peter right away and would want to get to know him better. He might see Peter as a symbol of the future of heroism and be eager to befriend him.
There's a possibility that it's an old enemy of the Avengers who sees this as an opportunity. For example, Hydra could be involved. They might try to manipulate the situation to bring down both the rogue avengers and Peter Parker. They could spread false information to make the public turn against them all, while they carry out their own evil plans in the shadows.
Often, other symbiotes can be the main antagonists. For instance, Venom himself might see Anti - Venom (Peter) as a threat and constantly try to attack him. Venom could be jealous of the power that Anti - Venom has or simply view Peter as an enemy because of the different nature of their symbiotic relationships.
Well, in this fanfiction, Peter Parker might meet the Avengers in a more casual setting. For example, he could be at a science expo where some of the Avengers are also present. Peter is there to show off his latest web - shooter design. The Avengers notice his intelligence and his unique abilities as Spider - Man. They then start a conversation with him, and from there, a relationship between Peter and the Avengers begins to form. This could lead to Peter getting involved in more Avengers - level missions and growing as a hero.
In a 'rogue avengers meet peter parker fanfic', there could be a lot of interesting scenarios. Maybe the rogue avengers need Peter's help for a secret mission. They might initially be skeptical of the young hero but soon realize his potential.
Peter could rely on his own inner strength. He has a strong moral compass, so he might use that to remind himself that the Avengers' actions are wrong, not his. And then he could focus on using his Spider - Man skills to prove his innocence or protect himself.