In this fanfiction, Naruto could come across some of Kumo's young shinobi trainees. He could inspire them with his never - give - up attitude. And there's a chance he'll meet some of the village elders in Kumo who might have different views on how to deal with him, either seeing him as a potential asset or a liability.
He would likely interact with Killer Bee. Since Killer Bee is a well - known and powerful ninja in Kumo, Naruto might be drawn to him for training or just to exchange ninja knowledge.
First of all, Naruto arriving in Kumo could disrupt the power balance there. Some might see him as a threat, while others as an opportunity. He could get involved in Kumo's internal politics. Since he's always been about making friends, he might try to bridge the gap between Kumo and Konoha, even though he was banished from Konoha. He could also discover secrets about Kumo that are related to his own past or abilities. For example, there could be some ancient Kumo jutsu that only he can master due to his Uzumaki heritage.
Ruby Rose for sure. She's the main character in Remnant and Naruto would likely be drawn to her energy and determination. He could also interact with Weiss Schnee. Naruto might be interested in her family's power and wealth, and Weiss could be curious about Naruto's strange abilities. Another one could be Blake Belladonna. Given her past and her more reserved nature, Naruto might try to befriend her and help her open up more.
C could be an interesting character for Fem Naruto to interact with. C is quite mysterious and has his own set of powers. Their interaction could be full of tension as Fem Naruto tries to figure out what C is really up to. Also, Omoi, with his indecisive nature, could provide some comical relief in Fem Naruto's interactions in Kumo while also being a useful ally in some situations.
He could meet Mei Terumi. She is a powerful and important figure in Kiri. Naruto might have some interesting interactions with her, either as an ally or having some initial misunderstandings with her. Another character could be Chojuro. He's a kind - hearted ninja, and he might be one of the first to welcome Naruto in Kiri.
Naruto is a given in this fanfiction. In Kumogakure, Mabui could be part of the harem. She is intelligent and in charge of a lot of important operations in the village. Her relationship with Naruto could start from her helping him with some village - related tasks. Another potential character is Omoi. Although he is male, his interactions with Naruto could lead to the female characters around him taking more of an interest in Naruto, thus contributing to the harem idea.
Well, one potential partner could be Omoi. I know he's male, but in some fanfictions, gender - bending or same - sex relationships are explored. Omoi's unique personality, with his over - thinking and yet loyal nature, could create an interesting relationship with Naruto. However, if we stick to the more traditional female partners, Yugito Nii could also be a great choice. She was a jinchuriki, just like Naruto, and they could share a special bond based on that shared experience.
Tsunade would definitely be one. As the most renowned medical ninja in the village, she could either be Naruto's mentor or a colleague. They could exchange medical knowledge and experiences.
In 'naruto as a cat fanfiction', Jiraiya could be an interesting character to interact with Naruto as a cat. He might see some potential in this cat - form Naruto for some new ninja techniques. The Akatsuki members could also interact with Naruto as a cat. For example, Itachi might sense something unusual about this cat when he passes through the village. And Konohamaru could be another character. He would be really excited to have a cool cat friend, not knowing it's Naruto.
Naruto might interact with Eostia's warriors. They could train together, Naruto showing them his ninja combat skills and them teaching him about Eostia - style combat. There could also be some mysterious characters in Eostia, like an old hermit who has some knowledge about Naruto's sudden appearance in their world and could guide him on his journey in Eostia.