He could meet Konan. Konan is closely associated with the Hidden Rain Village. Her paper - based jutsu would be an interesting interaction for Naruto. Maybe she could teach him something about her unique style of combat or they could end up in a battle.
He could meet Pain. Since Pain was from Amegakure, Naruto might encounter him or learn more about his past in the village. It would be an interesting encounter as they had a major battle before.
Well, in the 'naruto goes to ame fanfic', Naruto might encounter new and dangerous enemies in the Hidden Rain Village. He could also meet some interesting characters that are unique to this fan - made story. Maybe he'll discover some hidden secrets about the village or its people.
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 might meet some young and talented Kumo ninjas. They could be eager to test their skills against Naruto or learn from him. Maybe there are some unique characters like a Kumo ninja with a special bloodline limit that Naruto has never seen before.
In the 'Naruto goes to the North' fanfic, he may come across a group of nomadic ninjas. These ninjas have a different way of life compared to the ones in Konoha. They might be more in tune with nature and have unique abilities related to the natural elements of the North. Naruto could learn a great deal from them and they could also be potential allies in his adventures in the North.
He might meet the leader of Amegakure. Naruto could also come across some skilled shinobi who are masters of rain - based jutsu.
He could meet some space - faring ninjas who have adapted to the space environment. They might have unique chakra powers related to the cosmos.
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.
There's a chance Naruto meets some of Tenten's regular customers. These could be other ninja from the village who are also looking for supplies. Naruto might interact with them, sharing stories about his recent adventures while they browse through the items in the shop.
Well, one of the main themes in 'naruto ame fanfic' is the struggle for power. In the village of Ame, different factions might be vying for control. Also, friendship is a big theme. Just like in the original Naruto, characters form bonds in these fanfics set in Ame. For example, a story might show how a new character forms a strong friendship with an existing Naruto character while they are in Ame. And there's also the theme of mystery, as Ame has many secrets that fanfic authors like to explore.