He could make allies with versions of his own friends from different universes. For instance, a super intelligent Shikamaru from a high - tech universe. Also, Naruto might team up with powerful warriors from universes where the concept of chakra doesn't exist but they have their own forms of energy. Another potential ally could be a female version of himself who has different skills and a unique perspective.
In this fanfiction, Naruto could form alliances with characters from universes where the ninja world has evolved in different ways. He may find an ally in a ninja who has mastered a new form of space - time jutsu that allows them to travel between universes easily. Additionally, he could ally with a group of rebels in a universe where a tyrannical regime rules the ninja world, and they see Naruto as a symbol of hope.
He could make allies with versions of his classmates from different universes. For example, a more confident and powerful version of Uraraka in a universe where she has had different training experiences. They could team up and use their combined skills to face challenges.
He could make allies with the local magic users if the universe he travels to has a magic system. They might be intrigued by his ninja abilities and see the potential in working together.
He could meet alternate versions of his friends. For instance, an alternate Sasuke who has never left the village and is a strong ally from the start. This Sasuke could be more open and friendly, and together they could face the challenges of the new universe.
One potential ally could be the younger versions of his existing friends like Sasuke. Even though Sasuke in the past may not be as developed as in Naruto's original timeline, Naruto could still see the potential in him and form an alliance early on.
Maybe there are noble knights in the new world who recognize Naruto's courage and strength. They could form an alliance with him, with Naruto teaching them some stealth and speed techniques from his ninja training, and in return, the knights could offer him protection and knowledge about the new world's politics and social structures. Another potential ally could be a group of outcasts or rebels in the new world. They might be fighting against an unjust regime, and Naruto, with his sense of justice, would naturally side with them. Together, they could plan strategies to overthrow the oppressors, using Naruto's unique skills and the rebels' knowledge of the local terrain and the weaknesses of the regime.
Gaara could be one of his potential allies. Since they have a history together and Gaara has changed a lot, he might support Naruto. Also, the Raikage might become an ally if Naruto can prove that his intentions are good for the entire ninja world.
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 would meet other jinchuriki in his travels around the world. They share a unique bond as they are all hosts of tailed beasts. Together, they could support each other, exchange experiences about living with the beasts inside them, and become great friends in the process.
Some female ninjas who are intrigued by his different upbringing and abilities could be his allies. They might see him as an interesting novelty and someone who can bring new ideas to their world.
Sakura could be a great ally. She's already a skilled ninja with medical abilities. In a mage - influenced story, she could learn some magical healing spells to complement her existing skills. Her intelligence would also help Naruto in strategizing when they face magical threats.