Another idea is that Naruto is on a mission in a world where the Disney princesses' kingdoms are all in danger. He teams up with Snow White and uses his shadow clone jutsu to gather information and fight off the villains that are trying to take over each kingdom.
Perhaps Naruto meets Ariel, the Little Mermaid. Naruto, being used to a world full of different abilities and creatures, helps Ariel understand the surface world better. He could also protect her from Ursula using his Rasengan if she tries to cause trouble again.
One idea could be a story where Hermione Granger meets Belle. They could bond over their love for books. Hermione could learn some magic from Belle's enchanted items, and Belle could be introduced to the wizarding world's complex spells and potions.
Yes, there are likely some out there. You can try searching on fanfiction websites. Some writers might be creative enough to combine the worlds of Disney princesses and Naruto in unique ways, perhaps having the princesses end up in the Naruto universe or vice versa.
A male version of Snow White could also be interesting. He could be an exiled prince who finds refuge in the forest with the seven dwarfs. Instead of waiting for a prince to rescue him, he could be learning self - defense and leadership skills from the dwarfs. When the evil queen discovers his whereabouts, he could lead the dwarfs in a battle against her, adding a new twist to the classic story.
One idea could be to have characters from Naruto end up in the world of Danmachi. For example, Naruto himself could find his way into the dungeon and his ninja skills would be put to the test against the dungeon monsters. His shadow clone jutsu could be used in interesting ways, like sending clones into different dungeon levels to scout or fight. Another idea is to have the concept of chakra introduced into the Danmachi world. This could change the way adventurers fight and level up. Maybe some of the Naruto characters could train the Danmachi adventurers in new combat techniques.
One idea could be a crossover where Naruto is somehow transported to the Star Wars universe and meets Padme. Maybe he uses his ninja skills to protect her from the Sith.
Another concept is that Naruto is sent to Middle - earth. There, he could use his ninja skills and chakra powers. He and Gandalf could team up to fight Sauron. Naruto's ability to make friends and inspire others would be really useful in uniting the different races of Middle - earth against the common enemy.
A more complex idea is that the Matrix is used to create a virtual training ground for the shinobi. They enter the Matrix to practice their skills in a more controlled environment. However, they soon realize that there are some dark secrets within the Matrix, and Naruto has to lead the way to uncover the truth and free those who are trapped inside.
Another possibility is that Naruto visits the Townsville, the city where the PPG live. He might be confused by the modern technology there compared to his own world. The PPG could teach him about it while he shows them some of his ninja skills like tree - climbing and water - walking.
A third idea could be a story where Naruto's clones are mistaken for some kind of superpower by the Thundermans. Max might be intrigued and try to figure out how to do it himself. Meanwhile, the Thundermans could teach Naruto about modern technology which he has never seen in his own world. This could lead to some really interesting and comical situations as they try to understand each other's worlds.
Another possibility is that Pokemon exist in the Naruto world. Some ninja could have Pokemon as partners instead of traditional ninja animals. For example, Sasuke could have a Dark - type Pokemon like Umbreon that would match his cool and mysterious personality. And the Pokemon battles could be incorporated into the ninja battles, adding a new layer of strategy.