Naruto could meet Temari. She might be initially skeptical of him but as she sees his skills and determination, she starts to respect him. He could also meet Baki, the Suna ninja who trained Gaara and his siblings. Baki might test Naruto's abilities and then offer to train him further in Suna - specific jutsu.
Besides the main characters like Gaara, Temari and Kankuro, Naruto might also meet some of the elder shinobi in Suna. These elder shinobi could hold the key to some ancient Suna techniques or knowledge. There could also be some new characters created specifically for the fanfiction, like a young Suna orphan who looks up to Naruto and follows him around, which in turn helps Naruto feel more at home in Suna.
He would surely meet Gaara. Gaara, having had his own experiences of being an outcast, would likely be one of the first to interact with Naruto. They could share their stories and become good friends.
Well, in this kind of fanfiction, Naruto might be banished because some powerful figures in Konoha fear his growing power. In Suna, he could discover a hidden power within himself related to the desert. He teams up with Temari and Kankuro to explore ancient Suna secrets. As he gets to know the people of Suna better, he begins to change their perception of him, and they see him as an asset rather than an outsider.
There's a possibility that Naruto meets some of the younger generation of shinobi in Suna. These new characters could be eager to learn from Naruto or challenge him to a friendly spar. He may also come across some of the elders in Suna who have their own stories and wisdom to share with Naruto.
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.
Maybe some local tribespeople who have unique abilities or knowledge. For example, they could teach Naruto some ancient techniques or survival skills that are not known in the Hidden Leaf Village. There might also be wandering samurai or other shinobi from different regions who pass by the outpost and interact with Naruto.
He would surely meet Gaara. Gaara has had his own struggles and he might be able to understand Naruto on a deeper level. They could form an even stronger bond than before, with Gaara helping Naruto hide from those who might be looking for him in Suna.
There could be some old and wise shinobi in Suna that Naruto encounters. These shinobi could have stories about the history of Suna and its relations with other villages. Meeting them would give Naruto a broader perspective on the ninja world. Also, he might meet some civilians in Suna who are affected by the village's politics and shinobi activities. Interacting with them would make Naruto more aware of the real - life impact of being a shinobi in Suna.
In this fanfiction, Naruto might face new challenges in Suna. He could encounter different shinobi with unique fighting styles. Maybe he'll form new alliances or have some interesting cultural exchanges.
There could be new characters created specifically for this fanfiction. Maybe a young Suna shinobi who becomes Naruto's guide in Suna, showing him around the village and introducing him to the local way of life.
He could marry Hinata. Even though he's banished, Hinata might follow him because of her deep love for him. Their relationship could develop further outside the village, and they could get married and start a family.
In this fanfiction, Naruto might run into Arthas Menethil before he fully turned into the Lich King. It would be a very different kind of encounter compared to what he's used to in his own world. He could also meet Uther the Lightbringer. Uther might be curious about Naruto's unwavering will and Naruto could be in awe of Uther's connection to the Light. Additionally, he could meet many of the adventurers and common folk in Azeroth, each with their own stories and skills.