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 that the Infinity Stones are scattered across different planets again. The Avengers and the Guardians have to team up to find them before a new villain does. Maybe Thanos has a long - lost relative who is out for revenge and wants to use the Stones' power for destruction.
A 'Guardians of the Galaxy meet Avengers' fanfiction might involve a lot of character interactions. Drax could be fascinated by the Hulk's strength and constantly challenge him to tests of might. Gamora and Black Widow could share their combat experiences and train together. Also, Groot and Thor might have an interesting exchange. Thor could be amused by Groot's simple yet endearing nature while Groot might be intrigued by Thor's lightning powers.
I think Star - Lord and Iron Man would be an interesting pair. They both have a cocky and self - assured attitude. They could compete in terms of who has the cooler gadgets and who is better at coming up with quick - witted plans during battles. They might also argue about music, as Star - Lord is always into his retro tunes while Iron Man probably has his own favorite modern music.
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.
Another cool fanfiction idea could be a time - travel story. The Avengers accidentally send themselves to the time when the Guardians were just forming. This leads to a chaotic but interesting adventure where they have to work together without ruining the future of both groups.
One interesting fanfiction could be about a team - up mission between the Avengers and the Guardians. Maybe they have to face a new, powerful cosmic threat that neither group could handle alone. For example, a super - villain who can control dark matter and is using it to destroy planets on a whim.
One interesting fanfiction could be about the Guardians and Avengers teaming up to face a new, powerful villain from another dimension. In this story, the different personalities, like Star - Lord's charm and Captain America's leadership, would clash and then blend as they figure out how to defeat the enemy.
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.
Well, there could be an epic battle against a common enemy. Maybe Thanos somehow returns and the combined forces of the Avengers and Guardians have to use their unique skills to stop him. The Avengers' strength and strategic planning along with the Guardians' out - of - the - box thinking would make for an exciting story.
Well, there could be a huge battle against a common enemy. Maybe Thanos is back again and the combined forces of the Avengers and the Guardians have to use their unique skills to defeat him. For example, Iron Man could team up with Star - Lord to come up with a high - tech plan, while Thor and Drax could be on the front line, using their brute strength.