Gaara would probably be one of the main characters interacting with Naruto. They both have had difficult pasts and can understand each other on a deep level. Temari and Kankuro could also be important characters. Temari might spar with Naruto, while Kankuro could share his puppet - making skills with Naruto or learn from Naruto's combat techniques.
Well, Naruto joining Suna in this fanfic could lead to a shift in the power dynamics. Suna would gain a powerful ally in Naruto. He might start training Suna's younger ninjas, passing on his never - give - up attitude. Also, there could be political implications. With Naruto on their side, Suna could have a stronger voice among the Hidden Villages. Maybe Naruto would even help improve relations between Suna and Konoha, despite his past neglect in Konoha.
Besides Naruto, Yugito Nii could be a main character. She is a jinchuriki in Kumo, just like Naruto is in Konoha. They could bond over their shared experiences of being hosts. And there could be some of the Kumo elders who play important roles. They might be the ones who oppose Naruto's entry at first, fearing he could bring trouble, but then as they see how he can contribute to the village, their opinions change.
There's also Killer Bee. Since he has a connection to the outside world and is a powerful ninja. Naruto and he could cross paths in Kiri. They might even have some rap battles or just share their ninja experiences. Another character could be Zabuza. Even though he's dead in the original story, in a fanfic, Naruto could somehow encounter his spirit or a young Zabuza - like character and learn some of his swordsmanship skills.
The younger ninjas in Suna would be excited. Naruto is a well - known and powerful ninja. They would look up to him and want to train with him. The elders in Suna might be a bit more cautious at first. But once they see the benefits Naruto can bring, like better relations with Konoha and new ninja techniques, they would start to accept him. Overall, there would be a mix of excitement, caution, and anticipation in Suna.
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.
In this fanfiction, Naruto would interact with a variety of characters. First, his old friends like Choji and Kiba. They have been through a lot together and would support Naruto in the war. Then there are the leaders of the different ninja villages. Naruto might meet with the Raikage or the Mizukage. His interactions with them could range from tense negotiations to forming alliances. And don't forget about Hinata. Her support for Naruto could be a source of strength for him during the difficult times of war.
The main character has to be Naruto. But we can't forget about the Hokage, like Tsunade. She could be involved in changing Naruto's situation. Maybe she gives Naruto a special mission or training that helps him break free from being neglected. Then there are Naruto's friends from Team 7. Sasuke's relationship with Naruto is complex, and in this fanfic, it could be explored in the context of Naruto's new standing. Sakura, too, could be part of the story, perhaps by finally seeing Naruto in a new light and helping him gain more acceptance in the village.
Obviously Naruto would be one of the main characters as it's about him being the neglected child. Other characters from the original Naruto series like Iruka, Sasuke, or Sakura could also be main characters, depending on how they interact with Naruto in this fanfic.
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.
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.