Well, a plot could be that a group of White Martians, intrigued by the chakra system in the Naruto universe, come to study it. They start causing chaos as they experiment on ninja, and Naruto and his friends have to stop them. Or perhaps a White Martian has a change of heart after befriending Naruto and decides to help protect the ninja world from other threats in the universe.
One idea could be that Naruto somehow ends up in the world of Ms Martian. He might teach her some of his ninja skills, like how to move stealthily. And in return, Ms Martian could show Naruto how to use her telepathic abilities in a new way. They could team up to fight a common enemy that threatens both their worlds.
One plot idea could be that Naruto is somehow transported to the DC universe where he meets Miss Martian. They team up to fight a common enemy, like an alien threat that is causing chaos in both their worlds. Naruto could use his ninja skills and Miss Martian her telepathy and shape - shifting abilities.
A possible interesting plot point is Naruto having to adapt his chakra control in the Martian atmosphere. Since Mars has different conditions than Earth, his jutsu might work differently. Another could be Naruto encountering Martian life forms and having to communicate or fight them using his ninja skills.
One idea could be to focus on a trainer who discovers a rare and powerful Pokemon that no one has ever seen before in the Unova region. They then have to protect it from evil organizations who want to use it for their own gain.
Naruto himself. His boisterous and friendly nature could be a stark contrast to the often - cold and calculating White Martians. He might try to befriend the White Martian and show them the power of friendship and the will of fire. Sasuke could also be an interesting choice. His brooding and powerful nature could lead to a power struggle or an uneasy alliance with a White Martian.
An interesting plot idea for Naruto fanfic might be to focus on the life of a minor character. For instance, what if we told the story of a genin who never made it to be a chunin but still had a significant impact on the village in some other way? Or a story where all the ninja abilities are suddenly switched among the characters, and they have to adapt to these new powers while still facing their usual enemies. This could lead to some really fun and unexpected character interactions.
One plot idea could be exploring White Zetsu's origin more deeply. Maybe he was created with a specific purpose by an ancient force, and the fanfiction could unfold that mystery. Another could be his relationship with other Akatsuki members. For example, how he interacted with Pain or Konan, and if he had any hidden loyalties or motives among them.
One idea could be exploring the backstories of the White Fang members. Maybe show how some of them were forced into the group due to discrimination they faced. Another could be a story where a member of RWBY tries to understand the White Fang's motives better and forms an unlikely alliance with one of them.
A plot idea could be that there is a spell that binds Aslan and the White Witch together in some way, forcing them to work together to break it. This could lead to some really interesting character development for both of them. They might start to see each other in a different light and question their long - held beliefs about each other.
One idea could be that Naruto discovers a hidden power within Shenron. For example, instead of just granting wishes in the traditional way, Shenron could offer Naruto a special training regime that enhances his already powerful jutsu. This could lead to Naruto facing new and even stronger enemies.