One idea could be that Spider - Man gets accidentally transported to the Guardians' part of the galaxy. He has to team up with them to stop a powerful alien threat that is also related to some technology that could potentially cause chaos on Earth if it falls into the wrong hands. They'd all have to learn to work together, with Spider - Man's street - smart skills and the Guardians' out - of - this - world abilities.
Maybe there's a multiverse - related story where the Guardians and Spider - Man from different universes meet. The Guardians are on a mission to fix a rift in the multiverse that is causing problems in their own universe, and they discover that Spider - Man has a key role to play because of his unique powers. It could involve a lot of action as they travel through different dimensions and face off against versions of themselves and new enemies.
One idea could be that Spider - Man gets accidentally transported to the Guardians' part of the galaxy. He teams up with them to fight a new threat that is endangering both Earth and the various planets in the Guardians' territory. His unique abilities, like web - slinging, would be an interesting addition to the Guardians' combat style.
One idea could be that Iron Man somehow gets stranded in the Guardians of the Galaxy's part of the universe. He has to team up with them to fix his damaged suit and find a way back home. His high - tech knowledge could be a great asset to the Guardians while their knowledge of the strange parts of the universe could help him.
A great Guardians of the Galaxy 3 fanfiction concept could be a time - travel story. Maybe the Guardians accidentally get sent back in time and have to interact with their younger selves or even their predecessors in the Guardians' legacy. They would have to be careful not to change the future too much while also trying to find a way back to their own time. Another idea is a fanfiction that delves deeper into the relationship between Nebula and Gamora. How they grow closer or face new challenges together. And a third could be a story where the Guardians discover a new planet full of strange and powerful artifacts that they must protect from various factions who want to use them for evil.
One idea could be a fanfic where the Guardians have to team up with an old enemy to face a new, greater threat. Maybe a powerful cosmic entity that is threatening to destroy entire planets. Another idea is a fanfic focused on the backstory of a particular Guardian, like Rocket, exploring his life before he joined the team in more detail.
Well, you could have a plot where the Guardians accidentally stumble upon a parallel universe. In this universe, their counterparts are evil. They have to figure out how to return to their own universe while also preventing their evil doppelgangers from crossing over. Along the way, they might learn some secrets about the true nature of the multiverse and their own roles in it.
A great plot could be that a member of the Avengers gets lost in space and is found by the Guardians. The Guardians then have to bring this Avenger back to Earth, but on the way, they encounter a series of challenges that require the combined skills of both groups. Along the way, they form strong bonds and exchange knowledge about their respective worlds.
One idea could be a pre - Infinity War story where the Guardians try to steal an Infinity Stone from a powerful and unexpected enemy. Maybe a new race that has been secretly collecting powerful artifacts.
One idea could be a crossover where the Guardians accidentally enter the Star Wars universe. They might team up with the Rebel Alliance to fight against the Empire. Their unique powers and personalities would add a new dynamic to the Star Wars battles.
In fanfiction, a crossover might start with Spider - Man being abducted by an alien race that the Guardians of the Galaxy are also after. Once they meet, there could be initial mistrust. Spider - Man is used to operating alone in New York, while the Guardians have their own way of doing things in space. But as they realize they are after the same goal, like stopping a powerful weapon from being used, they start to work together. Spider - Man's agility and quick thinking would be a great asset to the Guardians, and their knowledge of the galaxy and advanced technology could help Spider - Man in ways he never imagined.
Spider - Man's agility and web - slinging could be used in tandem with the Guardians' ranged attacks. For example, he could web up enemies and then Star - Lord could shoot at them while they're immobilized. Or Gamora could use Spider - Man as a distraction, swinging him around with his webs to confuse opponents, and then she could move in for a stealthy strike.