Perhaps there could be a crossover where the Dark Jedi Order tries to infiltrate the Hidden Villages in the Naruto universe. They might see the ninja's use of chakra as a new form of Force - like energy to be harnessed or controlled. The Hidden Leaf Village would then have to deal with this new threat, with Naruto at the forefront, having to resist the allure of the Dark Side while protecting his village.
A plot could involve a Dark Jedi using mind - control techniques on some of the shinobi in the Naruto world. Naruto, with his strong will, has to find a way to break the mind - control and turn the tables on the Dark Jedi. He could learn some of their mental defense techniques and combine them with his own ninja training to create a unique counter - strategy.
One idea could be a Naruto - style character being trained in the ways of the Dark Jedi. Maybe Naruto discovers an ancient Sith artifact in the Naruto world that gives him access to Dark Side powers, like enhanced chakra manipulation with a dark twist.
Maybe there's a war between the ninja clans and a new group that has somehow acquired Jedi powers. The main character, who has a connection to both the Naruto and Jedi bloodlines, has to bring peace by finding a way to make both sides understand each other's powers and motives. They might start by showing how the Jedi's code of non - violence can be combined with the ninja's way of protecting their village.
One idea is that Obi - Wan could be influenced by a powerful dark side entity. This entity could be a long - forgotten Sith spirit. It slowly corrupts his mind, making him question the Jedi teachings. He starts to see the Jedi's pacifism as a weakness. Another plot could be that Obi - Wan is framed for a heinous crime within the Jedi Order. Feeling betrayed by his own kind, he turns to the dark side to seek revenge.
Perhaps they are living in a parallel universe where everything is dark and gloomy. Dark Naruto and Dark Kushina could be trying to find a way to break through to the normal universe. They might encounter strange versions of their friends and foes, and have to battle their own inner demons along the way. For example, Dark Naruto might struggle with the darker aspects of the Nine - Tails' power that he has fully embraced in this universe.
Well, perhaps in the 'hermione is a jedi fanfiction', there is a plot where Hermione goes on a quest across different galaxies as a Jedi. She meets various alien species and uses her knowledge of both Jedi and wizardry to solve problems. For example, she might use spells to repair a broken spaceship or use the Force to find a hidden magical artifact in an alien planet. And she could also have a showdown with a Sith - like character who is also a powerful dark wizard.
One plot idea could be a story where in a dark alternate universe, Hinata is forced to become a spy against Naruto. She struggles with her loyalty to her village and her feelings for Naruto. Another could be that a dark force corrupts Hinata's mind, making her see Naruto as an enemy, and Naruto has to find a way to break the spell.
One idea could be that Dark Naruto has to face his inner demons while Naruko tries to save him. Maybe there's a villain who is trying to manipulate Dark Naruto's power for evil purposes and Naruko discovers this and has to fight both the villain and convince Dark Naruto to resist the dark influence.
One idea could be exploring Dark Naruto's internal struggle. Maybe he's constantly fighting against the dark chakra within him and how that affects his relationships with the other characters in the Naruto universe. He could be on a journey to find a way to control or purge the darkness without losing his identity.
One idea could be Dark Naruto forming an uneasy alliance with the Kyuubi. They might decide to take on the Hidden Leaf Village together, believing it has wronged Naruto in some way. Naruto could use the Kyuubi's power in a more sinister way than ever before.
One plot idea could be that Dark Naruto, who has been influenced by some dark force, sees Ino as a key to unlocking a hidden power within himself. Ino, on the other hand, tries to use her mind - related jutsu to understand what's wrong with Naruto and ends up getting caught in his dark world. She has to fight against his darker impulses while also trying to save him from whatever is corrupting him.
One plot idea could be that Dark Naruto, with his inner turmoil, meets Fuu and they form an unlikely alliance to fight a common enemy in the ninja world. Maybe a powerful and dark force that threatens both their homes or ideals.