Perhaps in this fanfiction, Naruto is on a mission in a modern world that has a big dance culture like in Step Up. He has to infiltrate a dance group that is somehow connected to a criminal organization. As he gets involved in the group's dance routines, he discovers a passion for dance. He uses his ninja skills to help the group overcome some internal issues while also using dance as a way to fight off the bad guys when they finally show up.
A plot could involve Naruto being transported to the world of Step Up. He's intrigued by the concept of dance battles. Naruto starts learning the dance moves secretly. Eventually, he challenges the best dancer in the area to a battle. He combines his ninja speed and acrobatics with the new dance moves he's learned, creating a whole new style that amazes everyone and changes the perception of dance in that world.
One possible plot could be Naruto, with his determination and agility from his ninja training, joins a Step Up style dance crew. He uses his chakra control to add unique flairs to his dance moves, like creating glowing energy trails as he spins. The crew initially doubts him but he quickly wins them over with his natural talent and they go on to compete in a big dance competition against a rival crew that uses underhanded tactics.
Well, perhaps the Shake It Up characters could visit the Naruto world. They would be amazed by the ninjutsu and the different clans. The story could revolve around them learning some basic ninja skills and then using their dancing skills to incorporate into a new kind of ninja performance to impress the people in the Naruto world.
Sakura could be a main character. She could be the one who encourages Naruto to get into dance in the first place. Maybe she has a secret love for dance and wants to share it with Naruto. She could also use her medical ninjutsu knowledge to help prevent dance - related injuries within the group.
One possible plot could be that Naruto is somehow transported to the X - Men universe. He teams up with Wolverine. Naruto's unique ninja skills, like his shadow clones, could be used in combat against the Brotherhood of Mutants. Wolverine could teach Naruto about the concept of mutants and their struggles, and Naruto could in turn show Wolverine some of his ninja wisdom.
One interesting plot could be that Naruto is somehow transported to the X - Men universe. He teams up with Wolverine. Naruto's ability to create shadow clones could be used in interesting ways during battles, like confusing the enemies. Wolverine could teach Naruto some combat skills from the X - Men's fighting style. They could go on a mission to stop a powerful mutant villain who has plans to take over the world, using Naruto's chakra powers and Wolverine's adamantium claws.
One idea could be a character from a previous Step Up movie returns to the dance scene after a long hiatus, bringing a new style that challenges and inspires the current dancers. Another could be a cross - over with another dance - themed movie or TV show, where the Step Up dancers compete against their characters. Or perhaps a story about a dancer who overcomes a major injury through sheer determination and the support of their dance crew.
Well, a plot could involve a villain in the Naruto world who is creating some sort of dark energy that is affecting both dimensions. Kirby, being a hero in his own world, senses this and travels to the Naruto universe to stop it. Along the way, he teams up with Naruto. Naruto is amazed at Kirby's power to transform by swallowing enemies. Together, they face off against the villain and his minions, with Kirby using his copied ninja skills and Naruto using his jutsu.
One possible plot could be that Robocop is somehow transported to the Naruto universe. He teams up with Naruto to fight against a new threat that is using advanced technology similar to what created Robocop, but in a more malicious way. Naruto's ninja skills combined with Robocop's firepower would make for some epic battles.
One possible plot could be that Naruto is on a mission in a desert area and accidentally stumbles upon the tomb of the mummy. When the mummy awakens, Naruto initially tries to fight it, but then realizes that the mummy has some sort of connection to an ancient chakra source. They then form an uneasy alliance to explore and protect this power from falling into the wrong hands.
One possible plot could be that Naruto somehow gets transported to the Titanfall universe. He might use his ninja skills to outmaneuver the Titans at first, but then he starts to learn about the technology there and teams up with some of the Pilots. Maybe he teaches them some of his chakra - based techniques in exchange for learning how to pilot a Titan.
In a 'Naruto x Wanda fanfiction', it could start with Naruto on a strange mission that accidentally leads him to Wanda's dimension. Wanda is in the middle of a battle with her own enemies. Naruto jumps right in to help. After the battle, they realize that they have much to learn from each other. Wanda can teach Naruto about different forms of magic, while Naruto can show Wanda his ninja techniques. They then form an alliance to protect both their dimensions from future threats.