One idea could be to have Naruto characters in the Star Wars Rebels universe. For example, Naruto could be a Jedi - like figure with his chakra being similar to the Force. He could use his shadow clone jutsu in battles against the Empire, creating distractions and overwhelming opponents. Sasuke could be a Sith - like character who is initially on the wrong side but later sees the light.
One idea could be a crossover where the Rebels' technology somehow gets mixed with Halo's. For example, the Rebels might discover a Halo ring and try to figure out its purpose while also dealing with Covenant forces. Maybe Ezra could use his Force abilities in new and unexpected ways against the alien threats.
One idea could be to have a wizard from the Harry Potter universe accidentally end up in the Star Wars Rebels' galaxy. Maybe they use their magic to help the rebels in unexpected ways, like creating magical shields or using apparition to outmaneuver the Empire's forces.
Perhaps a fanfiction where some of the Naruto characters are actually clones themselves, like in The Clone Wars. Naruto could be a special clone created with a combination of chakra and the Force. His purpose could be to bring peace between the two universes. Hinata could be a healer in this new world, using her gentle nature and Byakugan to sense injuries and use the Force to heal them. This would mix the two universes in a unique way and create a lot of new storylines.
Another concept could involve characters from Star Wars being brought into the Naruto universe during the time when Dark Naruto exists. For example, a Jedi like Obi - Wan Kenobi could try to understand and potentially redeem Dark Naruto, seeing similarities between the dark side of the Force and Naruto's own inner darkness. This could lead to an interesting dynamic as Obi - Wan tries to use his Jedi teachings to reach Naruto.
Perhaps Sasuke could be like a Sith - like character in this fanfiction. He is drawn to the dark side of the Force due to his own inner turmoil and thirst for power. His Sharingan could have some interesting interactions with the Force - related abilities, like being able to sense the presence of other Force - users more acutely.
One idea could be a story where a Naruto - style ninja becomes a bounty hunter in the Star Wars universe. Maybe they use their chakra - based abilities in combination with Star Wars technology to track down bounties.
One idea could be to have Sekirei characters possess unique Force abilities. For example, a Sekirei might be able to use the Force to enhance their physical combat skills in a way similar to their natural powers in the Sekirei universe. They could be part of a new Jedi order or Sith group in the Star Wars galaxy.
One idea could be a story where the XCOM 2 soldiers are transported to the Star Wars universe. They could use their advanced tactics and technology to fight alongside the Rebel Alliance against the Empire. For example, their psionic abilities could be seen as a new form of the Force by some in the Star Wars world.
There are some really interesting ones out there. One great fanfic might have characters from 'Star Wars Rebels' somehow ending up in Middle - earth from 'Lord of the Rings'. They could bring their unique tech and powers to that world, creating all sorts of new storylines. For example, Ezra could meet Frodo and they could learn from each other's experiences in fighting against different kinds of evil.
In this fanfiction, Ezra could be on a mission and stumbles upon an ancient Mandalorian artifact. This artifact has some sort of connection to the Force, which draws Ezra in. As he delves deeper into the Mandalorian culture to understand the artifact, he uncovers secrets that not only change his perspective on the Mandalorians but also give him new powers or knowledge that he can use against the Empire. The story could explore how Ezra balances his newfound Mandalorian - influenced identity with his role as a rebel and a Force - user.