One possible interesting plot could be Naruto being transported to the Clockwork Planet. He might initially be confused by the mechanical world. His chakra abilities could disrupt the clockwork mechanisms, causing chaos. And he could team up with some of the native characters from Clockwork Planet to figure out a way to either fix the problems he caused or to find a way back home.
Perhaps in this crossover, the shinobi from Naruto's world are called upon to help with a power source issue on the Clockwork Planet. Naruto, with his never - give - up attitude, tries to use his Rasengan in a new way to power up a large clockwork device. Along the way, he meets characters from the Clockwork Planet who are fascinated by his strange powers and they form an unlikely alliance to save both their worlds from a looming energy crisis.
Maybe the main antagonist is an artificial intelligence on the Clockwork Planet that views Naruto and his chakra abilities as a threat to its control over the planet. It starts to send mechanical beasts to Naruto's world to capture him and study his powers. This AI is highly intelligent and has a vast network of clockwork devices at its disposal, making it a formidable foe for Naruto and his friends.
One possible plot could be that Naruto and his friends are transported to the Planet of the Apes world. Naruto tries to use his ninja skills to communicate with the apes. He might show them his shadow clone jutsu which could either be seen as a threat or a form of magic. Eventually, he teams up with some of the more intelligent apes to fight against a common enemy, like a group of rogue ninjas who also ended up there and are causing chaos.
One possible plot could be that Naruto and his friends from the Naruto universe are suddenly transported to the Destiny universe. They could be mistaken for new Guardians at the Tower. Naruto's chakra abilities might be misinterpreted as a new form of Light power. They then have to team up with Destiny's Guardians to fight against a common enemy that threatens both universes, like a powerful Darkness entity that has somehow found a way to cross over from Naruto's world where the Akatsuki's actions have weakened the barriers between worlds.
One interesting plot could be that Ichigo and Naruto are brought together in a strange alternate dimension. In this dimension, they have to team up to fight a new common enemy that has powers combining the Hollow and the Nine - Tails. They start off not understanding each other's abilities but gradually learn and combine their powers in unique ways to defeat the enemy.
A plot might involve Batman investigating strange energy readings in Gotham that turn out to be related to Naruto's world. Naruto arrives in Gotham following a villain from his own world who is after some powerful technology in Batman's possession. Naruto and Batman start off at odds but as they learn more about each other's strengths and motives, they form an alliance. Naruto teaches Batman about chakra and the ninja way, while Batman shows Naruto how to use stealth and technology in a more urban environment.
One possible plot could be that Naruto, through some strange space - time rift, ends up in Kaguya's era. He could then team up with her against a common enemy that threatens both their worlds. Naruto's unique jutsu and his never - give - up attitude might inspire Kaguya, and together they could create new and powerful techniques.
One possible plot could be Naruto and his friends being summoned to the world of For Honor. Naruto, with his ninja skills, could team up with the samurai and Vikings in For Honor. He might teach them some of his unique jutsu, like the Shadow Clone Jutsu to create diversions in battles. And in return, he could learn the combat styles of the For Honor warriors. They could then face a common enemy that threatens both the ninja world and the For Honor world.
One possible plot could be that Tenten discovers a hidden jutsu in an ancient scroll that was once used by Naruto's clan. This jutsu has the power to create portals to different dimensions. Naruto, being curious and always up for an adventure, teams up with Tenten to explore these new dimensions. Along the way, they face various challenges and enemies, and also learn more about each other's skills and pasts.
One interesting plot could be that Naruto is somehow transported to the DC universe. He teams up with Superman. Naruto's chakra and his ninja skills like shadow clones could be used in unique ways to fight villains. For example, the shadow clones could be used to distract enemies while Superman delivers a powerful blow. It would be a clash of two very different power systems and cultures.
One interesting plot could be that Naruto and his friends are transported to the Pokemon world. Naruto, with his determination and ninja skills, decides to become a Pokemon trainer. He might choose a Pikachu as his first Pokemon because of its spunk, similar to his own. Along the way, he discovers that some of the Pokemon have chakra-like abilities and he tries to use his ninja knowledge to train them in new ways. His friends also each choose their own Pokemon and they compete in Pokemon battles while also trying to find a way back to their own world.