Who could be the potential trainers in 'naruto gets trained early fanfic'?

Well, one interesting plot could be that Naruto gets trained by an unexpected mentor, like a hidden shinobi from a far - off village. This new mentor might teach him unique jutsu that give him an edge early on.

The Otsutsuki clan members other than Kaguya could be antagonists. Since Kaguya is training Naruto, they might see Naruto as a threat to their plans.

Perhaps a fallen god who, despite losing his status, still has the knowledge of how to train a God of Destruction. This character could have his own motives for training Naruto, like regaining his former glory through Naruto's success.

Sasuke could be a side character. Since Naruto is getting special training from Kakashi, Sasuke might feel jealous or motivated to train harder himself. Sakura could also be there, perhaps she tries to learn from Kakashi's training methods to help Naruto better. Another potential side character could be Iruka, who might check on Naruto's progress from time to time and offer some words of encouragement.

One possible trainer could be Kakashi. He might take Naruto's training more seriously and push him to his limits. Kakashi has a lot of experience and knowledge, and he could use more extreme methods to train Naruto.

One potential mentor could be an older and experienced samurai who has seen many battles. This samurai could teach Naruto the traditional ways of the samurai, like proper swordsmanship and the code of honor. Another could be a former ninja who has transitioned into samurai - like combat. They would understand Naruto's ninja background and be able to help him bridge the gap between his two forms of training. Maybe a samurai from a far - off land who has unique fighting styles and philosophies could also be a mentor, introducing Naruto to new ways of thinking about combat and honor.

There could be new antagonists created specifically for this fanfic. Maybe some dark forces that were sealed away by Asura long ago are awakened. They would oppose Naruto because they see him as a threat to their resurrection or their evil plans.

It could be some rogue shinobi who are after Pakura's knowledge. Since she's training Naruto, they might see it as an opportunity to get to both of them and steal their techniques. Maybe they were once her enemies or just power - hungry individuals.

Maybe it's a member of a long - lost ninja clan. This clan member could have some special skills and knowledge that they want to pass on to Naruto. They choose to train him in secret to protect their clan's secrets from falling into the wrong hands.

The Akatsuki could be potential kidnappers. They are always on the lookout for powerful jinchuriki like Naruto to extract the tailed beasts from them. Orochimaru could also be a kidnapper as he is always interested in obtaining powerful bodies and Naruto's strength would be very appealing to him.