There are also the wandering ninja. These are ninja who don't belong to any particular village. They might join forces with Naruto because they understand what it's like to be on the outside. Together, they could form a sort of 'rogue' ninja group.
Perhaps Naruto travels the world, seeking out ancient ninja secrets. He could encounter powerful and mysterious beings who either help or hinder his journey. He might also discover a connection to his family's past that he never knew before, like a long - lost relative who was also banished.
Sasuke could potentially be an ally. Even though they've had their differences, Sasuke might understand Naruto's situation and decide to help him. Also, some of the Jinchuriki he's met before could be allies. They might see Naruto as one of their own and support him during his exile.
Even characters from other villages could potentially be allies. For example, Gaara. In the game world, he and Naruto could form a powerful duo, with Gaara's sand - based attacks complementing Naruto's Rasengan - like moves. They could fight together against common in - game threats.
Sasuke could be an ally. Despite their past differences, Sasuke might see the injustice of Naruto's banishment and decide to join him. He could bring his powerful Sharingan skills to the new village. Also, some of Naruto's old friends like Shikamaru or Choji might secretly support him and provide resources or information. They could be like undercover allies still within the old village but helping Naruto's new village in various ways.
If Naruto is banished to the My Hero Academia universe, Deku could be his ally. Deku, with his determination to be a hero, would understand Naruto's drive to be recognized. They could share their experiences of being underestimated at first. Also, in a crossover with the Inuyasha world, Kagome could be an ally. She has a kind heart and could help Naruto understand the new world he's in. Her spiritual powers might also interact in an interesting way with Naruto's chakra.
Maybe Kurama, the nine - tailed fox inside Naruto, could be an unexpected ally in a new way. Since they have a bond, Kurama could provide Naruto with extra power and insights when dealing with time - related challenges. For example, Kurama might have some ancient knowledge about the flow of time that could help Naruto in his time - patrolling duties.
Aang could be an ally. Since Aang was the previous avatar, he could guide Naruto in understanding the avatar state and how to use it effectively. Katara could also be an ally. She could teach Naruto water - bending techniques and help him with his emotional side as she's very empathetic.
Well, Naruto being the son of Rias could have some interesting allies. Firstly, Rias herself would be a great ally, teaching him about the devil society and how to use his powers. Then, there could be other devil clans that are friendly to Rias' clan and would support Naruto. In the ninja world, his old sensei or comrades who respect his decision to embrace his new identity could be his allies. Also, there might be some mythical creatures in the devil realm that recognize Naruto's pure heart and decide to fight alongside him.
There could be some characters from Ouranos' world who turn out to be allies. Maybe there are some celestial beings who recognize Naruto as the son of Ouranos and decide to help him. For instance, a being with the power to manipulate time could assist Naruto in his battles or in understanding his powers better. Additionally, Hinata could be a strong ally. She has always had feelings for Naruto and would surely stand by his side, using her Byakugan to help him in combat and in uncovering secrets related to his new identity.
Sakura could be an ally. She might be curious about Naruto's new powers and help him control them. Also, Kakashi could be an important ally. He's always been there for Naruto, and he would likely try to understand and train Naruto with his new Saiyan abilities.