One possible plot could be that Peter, feeling overshadowed by the Avengers, decides to play pranks on them as a form of 'bullying'. For example, he might use his web - slinging abilities to move their things around or cause minor annoyances.
A more complex plot could involve Peter being influenced by an outside force, like a villain who has some sort of mind - control device. Under this influence, he turns against the Avengers and bullies them. The Avengers would then have to not only deal with Peter's attacks but also find a way to break the mind - control and bring him back to their side. This could involve a lot of emotional moments as they try to reach the real Peter inside.
Perhaps Peter has a misunderstanding with the Avengers. He might think they are keeping secrets from him or not treating him fairly. So, he starts to bully them in a way like using his intelligence to hack into their systems and disrupt their operations slightly. This would lead to a lot of conflict and drama within the story as the Avengers try to figure out what's wrong with Peter and how to stop him.
I'm not sure there are a lot of fanfictions specifically about 'Peter bullies Avengers'. Fanfiction usually focuses more on positive interactions or team - ups. However, you could try searching on major fanfiction platforms like Archive of Our Own (AO3) using those keywords and see if anything comes up.
In some 'peter is alone fanfiction', he could be alone in a strange new place. For instance, he's transported to a different dimension where he doesn't know anyone. He has to adapt, survive, and maybe find a way back home all by himself. This kind of plot can explore his character growth, his resourcefulness, and how he deals with the isolation in a completely unfamiliar environment.
One possible plot could be that Peter uses smoking as a way to deal with stress in a difficult situation within the story's universe. For example, if he's facing a lot of pressure at school or in a job.
A common plot is the Avengers protecting Peter from his enemies who now see him as an easy target because he's associated with the Avengers. For instance, some of Spider - Man's classic villains might team up to take him down. The Avengers then have to use their combined skills and powers to keep Peter safe. This not only shows the Avengers' loyalty to Peter but also how Peter learns from them in the face of danger.
One interesting plot could be that Peter gets trapped in an alternate dimension, and the Avengers have to figure out the science behind it to rescue him. They might face various challenges like strange creatures and unstable energy fields in that dimension.
One interesting plot could be Peter struggling to fit in with the Avengers' daily routines. He's used to his own way of doing things as Spider - Man in Queens, but now he has to adapt to the high - tech and highly - organized Avengers Tower. For example, he might keep accidentally setting off alarms while trying to practice his web - slinging inside. Another plot could be Peter bonding with different Avengers members. Maybe he has a heart - to - heart with Natasha about feeling like an outsider, since she also has a complex past. Or he could team up with Thor for a mission and learn about Asgardian culture in the process. A third plot might be Peter facing a new villain that specifically targets him because he's now associated with the Avengers. This villain could be someone who has a grudge against the Avengers and sees Peter as a weak link to exploit.
A plot could involve two Peters from parallel universes. They initially clash because they have different personalities or ways of doing things. For example, one Peter might be more introverted and scientific, while the other is more outgoing and action - oriented. But as they get to know each other, they start to work together to solve a common problem that threatens both of their universes. This could include fighting a super - villain who has found a way to cross between the universes. Another aspect could be that they discover some hidden secrets about their own identities or powers through their encounter with the other Peter.
One possible plot twist could be that the real danger was not what it seemed at first. For example, while the Avengers thought they were being attacked by a supervillain, it was actually a test set up by a greater power. And Peter discovers this truth while trying to save them. Another twist could be that Peter has to sacrifice one of his powers temporarily to save the Avengers, which changes his approach to being a superhero.
In some fanfictions, Peter could have a secret that he's keeping from the Avengers. When it's eventually revealed, they might feel betrayed and turn against him. It could be something related to his powers, or his past associations that the Avengers find unacceptable, thus resulting in their hatred.
Perhaps in this fanfiction, Peter is patrolling alone when he stumbles upon a mysterious artifact. This leads him on a quest to figure out what it is and who it belongs to, all while keeping it safe from those who would use it for evil. He has to use his Spidey - sense and his intelligence to solve the mystery.