One potential crossover character could be Harry Potter. Imagine Naruto, with his immortality, meeting Harry in the wizarding world. Naruto could teach Harry some ninja skills, and they could fight together against Voldemort. Another could be Superman. The contrast between Superman's superpowers and Naruto's ninja skills, along with Naruto's immortality, would make for an interesting story.
Kakashi from Naruto himself could be part of a 'grey' themed crossover within the Naruto universe. Maybe a situation where Kakashi's past and his more mysterious side are explored further, and Naruto has to work with him in a darker, more complex mission that delves into the grey areas of the ninja world.
Another potential character is Harry Potter. His wizarding skills and knowledge of magic could be a contrast to Naruto's ninja abilities. Imagine Naruto in Hogwarts, learning about magic while also showing off his ninja moves. They could also face a threat together, like a dark wizard who is trying to use both magic and chakra for evil purposes.
Definitely Naruto and Superman. They are both iconic characters in their respective universes. Their different power sets make for an interesting comparison. Another popular crossover is between Sasuke and Batman. They both have a dark and brooding side. And of course, Sakura and Wonder Woman. The contrast between Sakura's ninja skills and Wonder Woman's superhuman abilities is appealing.
Characters' views on friendship could change. In the crossover fanfiction, they may see characters from different universes form strong bonds despite their differences. This could make them more accepting of those outside their own world or group in their original Naruto story. They may also change their views on power. If they see characters with very different power levels and types in the crossover, they might reevaluate what it means to be strong in their own context.
In Naruto crossover fanfiction, characters might be exposed to different cultures and powers from other fictional worlds. This can make for some really exciting moments. For instance, if a Naruto character encounters a character with magic from another series, they may be both in awe and a bit envious. The characters might also enjoy seeing how the fanfiction resolves conflicts between the different universes' rules and values. It can be a great way to explore different concepts and expand their own understanding of the fictional multiverse.
Goku from Dragon Ball Z could be a great pairing. Both are powerful fighters who constantly strive to become stronger. They could have some epic battles to test each other's strength and then team up to face a powerful villain that neither could defeat alone. Goku's ki - based attacks and Naruto's ninjutsu would create some really cool fight scenes.
Obviously Naruto himself is a central character. His popularity from the original series brings a lot of attention. Then there might be characters from the crossover world that gain popularity. For example, if it's a crossover with a Final Fantasy world, characters like Cloud or Squall might be popular in the fanfiction.
Definitely Naruto himself. He's the main character of the Naruto series, so he has to be there. In a crossover with Attack on Titan, he could meet Eren. Naruto's determination and Eren's drive to protect his people could make for an interesting dynamic between them.
Naruto's son is the central figure for sure. And if it's a crossover with the Dragon Ball universe, characters like Goku or Vegeta might also be important characters. They could interact with Naruto's son, perhaps training him or being his rivals in some way. This would create interesting dynamics between characters from different fictional backgrounds.