His friends like Sasuke could be his allies. Sasuke, despite his own complex journey, has a deep connection with Naruto. He would understand Naruto's need to fight against the council if they were being unjust. Also, Sakura, with her medical skills and growing strength as a ninja, would be a great asset. She could heal the team during any confrontations and also use her combat skills when necessary.
The members of Team 7, including Naruto himself, are a natural choice. But also, the other ninja from his generation like Shikamaru, who is very intelligent and good at planning. He could come up with clever strategies for Naruto to use against the council. And Choji, with his strength, could provide physical protection during any confrontations. Ino could use her mind - transfer jutsu to gather information on the council's plans, making them all valuable allies for Naruto in this fanfiction.
Iruka Sensei could be one of Naruto's allies. Iruka has always believed in Naruto and seen his potential. He would not stand by if the council was treating Naruto unfairly. Another ally could be Kakashi. Kakashi is highly respected in the village and his skills and wisdom would be crucial in helping Naruto strategize against the council. He could also act as a mediator if things got too out of hand, trying to resolve the situation without too much bloodshed.
One possible plotline could be that Naruto discovers some underhanded schemes the council has been planning against him. Maybe they are trying to limit his growth as a ninja because they fear his power. So, Naruto decides to fight back by gathering evidence of their wrongdoings and presenting it to the village elders who are not part of the corrupt council. This would be a way for him to expose them and regain the trust and freedom he deserves.
Maybe there is a scientist or an inventor who becomes Percy's ally. This person could be creating new weapons or gadgets that Percy uses in battle. Their alliance could be crucial in giving Percy an edge in the fight. For example, the inventor might create a special type of grenade or a device that can jam the enemy's communication lines.
Iruka sensei might be an ally. He has always believed in Naruto and would be on his side when it comes to standing up to the council. Also, the members of Team 7 like Sasuke (if he has returned to the village and is in a more positive state of mind) could be allies. Sasuke has his own reasons to dislike authority figures who are corrupt. And then there are the members of the Uzumaki clan (if there are any remaining in the village) who would support Naruto as he is one of their own and they would want to see the council held accountable for any mistreatment of their clan.
His friends like Ron and Hermione would surely be his allies. They have always been by his side in the original stories, so it's likely they'll be there in the fanfiction too, helping Harry in his fight.
I think some of the younger ninjas in the village would support Naruto. They look up to him as a role model. Also, those who have been helped by Naruto in the past, like the families of the villagers he saved. They would see that Naruto is fighting for what's right and would stand with him against the council. Additionally, some of the outcast ninjas who feel oppressed by the council's rules might also join Naruto.
In some fanfictions, Naruto could form alliances with former enemies. For example, some members of the Akatsuki who have a change of heart might join forces with Naruto. This could be an interesting twist as they bring their unique skills and knowledge of the underworld to the fight. Additionally, some of the older generation of shinobi, who have retired but are forced to come back because of the severity of the war, could be his allies.
Sakura and Sasuke would likely be his allies. They have been through a lot with Naruto and would stand by him. Also, some of his old friends from the Hidden Leaf like Shikamaru and Kiba might join in. They have always supported Naruto in the past and would do the same in this situation.
In this fanfiction, Iron Man could be one of his allies. Iron Man has the advanced technology and firepower to take on the Chitauri. They could combine their skills, with Spider Man's agility and Iron Man's powerful blasts. Another possible ally could be Captain America. His leadership and combat skills would be valuable in the fight against the Chitauri.
It could be an enemy who has the power of sound. This opponent might be able to create sonic blasts with their music. Naruto would have to figure out how to counter these sound - based attacks, perhaps by using his wind - style jutsu to disrupt the sound waves.
Maybe some unexpected allies could emerge. For example, a centaur who has witnessed the unjust actions of the court might come forward to help Harry. Or a goblin who has knowledge of the court's financial misdeeds could offer assistance. Harry's reputation for being a hero could attract all sorts of beings who want to see justice served in the court.