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.
Maybe the Vulture could make a comeback. In this fanfiction, he might be out of prison and looking for revenge on Peter. Or it could be a new villain that has heard about the young Spider - Man patrolling alone and sees it as an opportunity to take him down. And of course, there's always the possibility of Aunt May finding out more about his solo patrols and getting worried.
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.
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, 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.
One interesting story could be about Peter's first mission with the Avengers. He's nervous but tries to prove himself. Another might focus on Peter's relationship with Tony Stark within the Avengers, like how Tony mentors him. There could also be a fanfiction where Peter discovers a new power during an Avengers adventure and has to learn to control it quickly.
One possible plotline could be the two Peters from different universes teaming up to fight a new threat that the Avengers can't handle alone. Maybe they use their combined spider - powers in unique ways.
One interesting plot could be the animal avengers having to deal with a new villain that can control the weather. The animals would have to use their unique abilities, like the birds flying into the eye of the storm to disrupt the villain's control. Another plot might involve the animal avengers trying to protect their forest home from humans who want to cut it down for development. They could form alliances with other forest creatures and use their wits to outsmart the humans. And there could also be a plot where the animal avengers discover a magical item in the forest that gives them new powers, but they also have to face the danger of it being stolen by an evil group of animals.
Perhaps in this fanfiction, there is a new member who has the power to heal emotional wounds. The Avengers initially don't trust this new person, but as they face challenges that test their mental and emotional strength, they come to realize that this new member is crucial to their team. This new member helps them deal with their past traumas and makes the team stronger than ever.