I think Naruto and Akame would be really interesting. Naruto's positive and determined attitude would contrast with Akame's more stoic and assassin - like nature. They could learn a lot from each other. Naruto could show Akame the power of friendship and hope, while Akame could teach Naruto some stealth and combat skills that are different from what he has learned in the ninja world.
Lubbock and Rock Lee would be a great combination. Lubbock is creative with his string - based attacks, and Rock Lee is all about physical strength and his unique taijutsu. They could have some hilarious training sessions together, with Lee trying to teach Lubbock some of his intense training regimens and Lubbock showing Lee how to use his strings in more creative ways during combat.
Esdeath and Kakashi would also be an interesting pair. Esdeath is a powerful and somewhat cruel general in the Night Raid world, while Kakashi is a highly skilled and intelligent ninja. Their battle of wits and skills would be exciting to read. Kakashi would have to figure out Esdeath's motives and weaknesses, while Esdeath would be intrigued by Kakashi's Sharingan and his diverse range of jutsu.
Naruto and Louise. Naruto's energetic and positive personality would contrast greatly with Louise's tsundere nature. It would be interesting to see how they interact and how Naruto's ninja skills would be perceived in the Familiar of Zero world where magic is dominant.
Another great combination could be Archer from Fate Stay Night and Kazuya from Freezing. Archer's cynical and experienced nature would contrast well with Kazuya's more naive and kind - hearted personality. In a battle situation, Archer's long - range archery skills combined with Kazuya's support abilities for the Pandora could create some really cool combat scenes. Plus, their different outlooks on life would lead to some interesting philosophical discussions between them.
Naruto and Rick would be a really interesting combination. Naruto's optimism and never - give - up attitude could inspire Rick, who has seen so much horror. And Rick's leadership skills and survival instincts could teach Naruto a thing or two about dealing with a post - apocalyptic world. They could work together to lead their respective groups and fight off the walkers and any other threats.
Naruto and Rias would be really interesting. Naruto's straightforward and determined personality combined with Rias' leadership and strategic mind could lead to some great interactions. They could learn from each other's fighting styles and ways of dealing with problems in their respective worlds.
Definitely Sakura and Sid. Sakura is a strong - willed and intelligent character. Sid is a bit of a goofball. Sakura could be constantly exasperated by Sid's antics, but at the same time, Sid could bring out a more fun - loving side of Sakura. And Sakura could use her medical ninjutsu to help Sid if he gets injured during their adventures in the Ice Age world.
I think Naruto and Alice would make a great combination. Alice can see the future, and Naruto has his ninja skills and immortality. They could team up to prevent some disasters in both worlds. Alice could foresee the problems, and Naruto could use his powers to stop them. And Naruto's immortality would give them more time to plan and execute their strategies.
I think Naruto and Manny would be an interesting combination. Manny is this big, strong mammoth, and Naruto is a skilled ninja. Their personalities are so different. Naruto is full of energy and always eager to prove himself, while Manny is more of a calm and protective leader. It would be fun to see how they interact and how Naruto's ninja skills might come in handy in the Ice Age world with Manny's brute strength.
Sasuke and Todoroki would be an exciting combination. They both have a bit of a dark past and are very powerful. Sasuke's Sharingan and Todoroki's dual - quirk abilities could lead to some really intense battles and strategic planning. They might start off as rivals but could eventually find common ground and work together, perhaps against a common enemy that threatens both their worlds.
Well, Naruto could bring his powerful ninja skills like the Rasengan. He might form strong bonds with the members of Night Raid. His positive attitude could also influence the group's dynamic, making them more united and motivated.
Naruto and Rias would be an interesting combination. Naruto's straightforward and determined nature combined with Rias's leadership and her own goals in the world of Highschool DxD could lead to some really engaging storylines. They could learn from each other, like Naruto could teach Rias about his ninja way of never giving up, and Rias could introduce Naruto to the complex politics of the devils.