One idea could be that Spider - Man uses his agility to outmaneuver an enemy that has the Avengers trapped. For example, he could swing in and steal a key device from the bad guys that's jamming the Avengers' powers.
Maybe in the fanfiction, Spider - Man discovers a secret connection between his powers and an ancient Asgardian artifact. The Avengers, especially Thor, would be intrigued. They then embark on a journey to figure out how this connection could either save or endanger the world. Spider - Man would have to balance his normal life and this new discovery with the Avengers.
One idea could be Spider - Man joining the Avengers on a mission to a far - off planet. He uses his agility and quick thinking to help the team out of tricky situations. Another could be a story where Spider - Man has to prove himself to the Avengers in a training exercise set up by Iron Man.
One idea could be that Spider - Man has to use his unique street - level skills to help the Avengers in a mission where they are facing a villain who can manipulate technology in a city. His agility and quick thinking can give the Avengers an edge in the narrow alleys and on top of skyscrapers.
One idea could be a fanfiction where Spider - Man has to team up with the Avengers to stop a new villain that is specifically targeting his neighborhood in Queens. This would combine the street - level heroics of Spider - Man with the big - scale action of the Avengers.
Maybe Spider - Man discovers a new threat that the Avengers have overlooked. He then tries to convince them of the danger, facing skepticism at first but eventually winning them over with his tenacity and evidence. For example, he could find a hidden group of villains planning to use a new type of technology to take over the world.
Maybe in the fanfiction, Spider - Gwen gets lost in the future where Spider - Man 2099 exists. He has to help her get back to her own time while also protecting his own version of New York from the chaos her presence might bring. They could learn from each other's fighting styles and develop a unique bond in the process.
One idea could be that Spider - Man has to use his unique abilities to solve a mystery within the Avengers' headquarters. Maybe there are some strange energy signatures that only his spider - sense can detect.
One plot idea could be the Avengers recruiting Spider - Man to help with a new threat in the PS4 game's version of New York. Maybe a powerful villain from the Avengers' rogues gallery has teamed up with one of Spider - Man's foes.
One idea could be exploring the different Spider - People's home universes in more detail. For example, showing what Miles Morales' daily life in his universe was like before becoming Spider - Man. Another could be a team - up between Miles and an older, more experienced Spider - Person from a different universe to face a new and powerful villain.
Perhaps there's a fanfiction where Spider Man and Spider Gwen accidentally swap powers. They have to learn how to use each other's abilities to fight crime. This would lead to some really funny and also challenging situations as they get used to different ways of web - slinging and sensing danger.