One idea could be a story where the zombies are created by a Sith experiment gone wrong. The Jedi have to fight both the zombies and the Sith forces behind it.
Perhaps a story where a group of smugglers find a derelict ship full of zombie-like creatures. They then have to navigate through the Star Wars universe while being chased by these undead threats and the authorities. For example, Han Solo - type characters could be in this situation, using their wits and the ship's capabilities to survive.
One idea could be exploring the backstory of a minor character in Star Wars 1. For example, a young Padawan who was on the same Jedi training grounds as Anakin but had a very different path. Another could be a fanfiction that focuses on the political intrigue on Naboo before the Trade Federation blockade. Maybe there were some secret meetings or power plays that we didn't see in the movie. A third idea is to write a story from the perspective of a droid during the events of Star Wars 1, like how they experienced the chaos and battles.
Imagine a fanfic where certain Pokemon species are native to specific planets in the Star Wars galaxy. Like, water - type Pokemon on Naboo. And there could be a story about a young Jedi who discovers a Pokemon egg on a strange planet. He takes it with him and as it hatches, they form a bond, and together they go on adventures, facing the challenges of both the Sith and other powerful Pokemon trainers.
In a Ninjago Star Wars fanfiction, you could explore what would happen if the Ninjago ninja were Force - sensitive. Kai, for instance, could struggle with the temptations of the Dark Side due to his hot - headed nature. The story could follow his journey as he tries to master the Force while also staying true to his ninja values. Meanwhile, the other ninja would also have their own experiences with the Force, and they'd all have to face new challenges in a universe filled with Jedi, Sith, and other Star Wars elements.
Well, you could have a fanfiction where the Galactic Empire somehow gets hold of the Omnitrix. Then they try to use it to create super - soldiers. Ben, of course, has to break into their strongholds to get it back. Or perhaps there's a story where Ben is mistaken for a new type of Force - user because his alien transformations seem to give him powers similar to the Force in some ways. He then has to navigate the complex politics of the Star Wars galaxy while trying to clear his name.
A really cool fanfiction idea would be if Kylo Ren somehow ended up in the world of Frozen. He could be initially seen as a threat, but then Elsa realizes that he has some good in him due to his internal conflict, much like her own struggle with her powers. Or perhaps a story where the Ewoks meet the trolls from Frozen. They could exchange their knowledge of the forest and magic respectively.
For a Star Wars rewrite fanfiction, you might consider changing the origin of the Force. Instead of it being this mysterious energy field, it could be something created by an ancient civilization. You could also rewrite the relationships between the main characters. For example, make Han Solo and Leia not fall in love but instead form a strong platonic friendship. And how about a rewrite where Darth Vader is redeemed much earlier in the story? This could change the entire course of the galactic events, as he could then use his power and influence to undermine the Emperor from within much sooner.
One idea could be exploring Ashoka's time between leaving the Jedi Order and her appearance in Rebels. Maybe she meets some new and unique characters in different parts of the galaxy and has to make tough choices without the guidance of the Jedi. Another could be a story where Ashoka teams up with an unexpected ally, like a bounty hunter who has a change of heart. It could also be interesting to write a fanfiction about Ashoka's early days as a Padawan, before she became Anakin's apprentice.
A really cool idea for a Star Wars party fanfiction would be a party on a starship that's traveling through hyperspace. The crew could be from all different species and allegiances. There could be a mystery at the party, like a smuggled item that's being passed around. The characters have to figure out who has it and what it is while also enjoying the party. It could involve characters like Han Solo and Chewbacca getting into some funny situations as they try to solve the mystery.
One interesting idea could be exploring the backstories of minor characters. For example, in some fanfictions, they might delve into the early life of a stormtrooper and what led them to join the Empire. Another idea could be alternate endings to the movies. Maybe in a fanfiction, Luke Skywalker turns to the dark side, which would be a really different take on the story.
One interesting idea could be Spongebob as a Jedi. Imagine him using his spatula as a lightsaber. Another could be Mr. Krabs being a greedy Sith, always after more power in the Star Wars universe. And Patrick might be a clumsy but well - meaning sidekick like R2 - D2, getting into all sorts of comical situations while trying to help Spongebob on his adventures.