One idea could be that the Infinity Stones somehow open a portal to the Star Wars galaxy. The Avengers find themselves in the middle of a battle between the Jedi and the Sith. They have to choose sides. Another idea is that a powerful villain from the Star Wars universe comes to Earth, and the Avengers team up with Star Wars heroes to defeat it. For example, Darth Vader could be a threat to Earth, and the Avengers and Luke Skywalker work together to stop him.
Here's a different plot. The Avengers are accidentally sent to the Star Wars universe during an experiment gone wrong. They are mistaken for enemies at first. But as they prove themselves, they start to work with the local characters. They could help train the Rebels in new combat techniques. At the same time, they try to find a way back home. But some of the Avengers might start to question if they should stay in this new universe and use their powers to make a bigger difference there.
One plot idea could be that the Avengers are somehow transported to the Star Wars universe. They have to team up with the Jedi or the Rebels to fight a common enemy, like a new Sith Lord who has powers similar to some of the Avengers' villains. Another idea is that the Infinity Stones are discovered in the Star Wars galaxy and both the Avengers and Star Wars characters have to figure out what to do with them.
A possible plot for 'ezra is a hybrid star wars rebels fanfiction' could be that Ezra is a hybrid of a time - traveler and a normal Star Wars character. He gets sent back in time and has to use his knowledge of the future and his hybrid abilities to change certain events in the Rebellion's history for the better. Another idea is that he's a hybrid of a Jedi and a Mandalorian. This would give him a very different set of skills and a unique perspective on the fight against the Empire. He could combine the Mandalorian's combat and armor - using skills with the Jedi's connection to the Force, creating a character who is both a formidable warrior and a spiritual guide within the Rebellion.
Sure. One idea could be about a group of Sith apprentices who rebel against their dark masters. They realize the true nature of the dark side and want to find a way to balance the Force instead. Another idea is a story set during the Clone Wars from the perspective of a clone trooper who discovers a conspiracy within the Republic's military. Or, you could write a fanfic about a Jedi who gets stranded on a planet full of unknown and dangerous creatures and has to use the Force in new and creative ways to survive.
Another concept is that a new threat emerges that requires both the skills of the Avengers and the powers of the Star Wars characters. This new enemy could be a powerful being that can manipulate time and space. The Avengers' superhuman abilities combined with the Jedi's connection to the Force would be needed to defeat it. Black Widow could use her espionage skills to gather intelligence within the Star Wars universe, while Spider - Man (if he's part of the Avengers in this fanfic) could use his agility to navigate the complex terrains of different Star Wars planets.
One idea could be a battle where the Eternals and Avengers are initially at odds due to a misunderstanding. Maybe they both think the other group is causing some strange cosmic events. Eventually, they figure out it's a third party and team up.
One idea could be that Spiderman discovers a new threat in his neighborhood which turns out to be linked to a much larger plot involving the Avengers. So he has to convince the Avengers to take him seriously and work together to stop it.
One idea could be Deadpool trying to join the Avengers but constantly annoying them with his non - stop chatter and crazy antics. For example, he could keep interrupting their strategy meetings with his own hare - brained plans.
In such a fanfiction, there would be a lot of culture clashes. The Avengers are used to their Earth - based battles and technology. When they meet the Star Wars characters, they'd have to adapt. For example, the Hulk might not understand the concept of the Force at first and just smash things around. But then, he could learn to use it in his own way. The Star Wars characters would also be shocked by the Avengers' powers. Luke Skywalker might be inspired by Iron Man's suit and try to create something similar for himself.
A really interesting plot could be based on the idea of time travel within the context of 'The Avengers Infinity Wars' fanfiction. What if the Avengers found a way to go back in time and change certain events that led to Thanos getting the Infinity Stones? They could try to prevent the destruction of Xandar where the Power Stone was first retrieved, or stop Loki from stealing the Tesseract on Earth, which was a crucial step in Thanos' plan.
One idea could be that in the fanfiction, instead of Thanos getting all the Infinity Stones, the Avengers manage to steal some of them first. They could then use the power of the stones they have to create alternate versions of themselves to fight on different fronts against Thanos' forces.