Maybe some of the children of the Suna elders. These students would be under a lot of pressure to perform well. Naruto, with his own experience of being an underdog, would be able to connect with them. Also, there could be students who were previously part of Suna's rogue groups but are now trying to reform. Naruto would be a great influence on them, teaching them the right path and how to use their skills for good.
One of his students could be Gaara's younger siblings. They would be eager to learn from Naruto, especially since he was the one who changed Gaara's life. Another could be some of the regular Suna academy students who are looking to become stronger shinobi. They would see Naruto as a great opportunity to learn from someone with his level of skill and experience.
It could be that his students include some of the more talented but undisciplined shinobi in Suna. Naruto, with his own unorthodox training methods and his ability to understand and motivate people, would be able to bring out the best in them. He might also have students who are orphans, just like he was, and he could be a role model for them, teaching them not only ninja skills but also how to build a family out of friends.
One possible plot could be that Naruto is sent to Suna as a part of a diplomatic exchange of skills. He starts teaching the young shinobi in Suna his unique jutsu like the Rasengan. He also shares his experiences of perseverance and friendship, which helps in changing the mindset of some of the more cynical Suna students.
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.
Naruto's godlike power would likely boost Suna's defense. His ability to quickly defeat enemies could deter other villages from attacking. For example, if the Akatsuki were to target Suna for its jinchuriki, Naruto could easily fend them off.
If Naruto becomes a Suna Nin in fanfiction, the plot would change drastically. For one, his relationships with characters in Konoha would be strained. His bond with Sasuke might take a different turn as they would be on opposing sides. Also, Naruto would have to adapt to Suna's culture and ninja techniques. He might learn new jutsus specific to the Sand Village, which could make him an even more formidable ninja in a different way than he was in Konoha.
Suna's reaction would depend on many factors. If Naruto arrives during a time of relative peace between the two villages, they may be more lenient. But if there are existing tensions, it could be a different story. Some Suna ninja might recognize Naruto's potential and try to recruit him for Suna, while others would be worried about the political implications of sheltering a Konoha ninja.
Gaara would be an obvious choice. Since Gaara is from Suna, he could be Naruto's close friend. They could train together and share their experiences of being jinchuriki. Kankuro and Temari might also become his friends. Kankuro could teach Naruto some of his puppet techniques, and Temari could help Naruto with wind - style jutsu training.
There could be a group of orphaned ninja - in - training that Naruto takes under his wing. These students would look up to him not only as a teacher but also as a symbol of hope, much like how Naruto once looked up to Iruka - sensei. They could come from various backgrounds and clans, and Naruto would have to find ways to bring out the best in each of them.
He might meet Gaara. Since Gaara is the Kazekage of Suna, it's very likely that they would cross paths. Naruto and Gaara have a history, so their encounter could be filled with reminiscing about their past battles and how far they've come.
He would be like a big brother to the students. Since Naruto is not that much older than some of the students in terms of when he started his journey, he can easily relate to them. The students would look up to him and trust him quickly.
Naruto might feel abandoned at first. Since Kushina is his mother, her leaving could make him feel lonely and question why she has to go. He may become more withdrawn.