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.
In the fanfiction, Naruto might become a teacher in Suna to help them improve their combat strategies. Since he has faced so many powerful foes, he can teach the Suna students how to analyze opponents better. For example, he could use his battles against the Akatsuki as case studies. He also imparts his values of loyalty and never giving up, which gradually unites the students and makes them stronger as a group.
Perhaps in this fanfiction, Naruto is invited to Suna to teach after they realize the power of his Uzumaki heritage. He begins by teaching basic chakra control but soon moves on to more advanced topics. He also tells stories of his own training under Jiraiya, which not only educates but also inspires the students. His presence in Suna as a teacher might also lead to better relations between Konoha and Suna as the students grow to respect him and by extension, Konoha.
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.
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.
In a Naruto - becomes - a - teacher fanfiction, Naruto could focus on teaching his students about the value of friendship and teamwork. He might organize team - building exercises that are actually dangerous ninja missions. His students would learn to rely on each other, just as he did with his own team. He could also share stories about his adventures with the Akatsuki, making sure his students understand the threats that still exist in the ninja world.
Maybe Naruto leaves to Suna because he has some personal issues in Konoha. He could be seeking a fresh start in Suna. There, he might meet new friends and foes alike. He could get involved in Suna's internal politics or power struggles while trying to prove himself as a valuable ally.
Well, in a 'naruto lives in suna' fanfiction, perhaps Naruto is exiled from Konoha for some reason. He then finds a new home in Suna. He starts training with the Sand ninjas and discovers new aspects of his chakra control. He also gets involved in the internal politics of Suna, trying to bring peace between different factions within the village.
Well, one possible plot could be that Naruto, for some reason, is found in Suna and taken in by a family there. Maybe he's lost during a mission near Suna. He then has to adapt to the Suna culture which is different from Konoha's. He might learn new jutsus specific to Suna and form new friendships with Suna shinobi.
One possibility could be that Naruto goes to Suna to help them with a new threat. Maybe there's a powerful enemy that only Naruto's skills, like his Rasengan and shadow clone jutsu, can deal with. He then starts training some of the Suna ninjas in new techniques, leading to stronger bonds between Konoha and Suna.
One possible plot could be that Naruto runs away to Suna to escape some sort of danger in Konoha. Maybe there's a powerful enemy after him and he thinks Suna can offer him protection. He could also be running away from some internal conflict within Konoha, like issues with the villagers not fully accepting him still.
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.
If Naruto ate the Suna Suna no Mi in fanfiction, it would change his fighting style drastically. He'd have to learn how to manipulate sand, which is a very different element from his usual chakra - based attacks. Maybe he'd combine his new sand powers with his shadow clones, sending clones made of sand to confuse his opponents. This would make him even more unpredictable in combat.