One interesting fanfiction could be where Iruka trains Naruto in advanced ninjutsu techniques that are not taught in the regular academy. This could lead to Naruto becoming even stronger at a faster pace and having unique skills in battle.
There might be a fanfiction where Iruka focuses on training Naruto's chakra control. In the story, Naruto struggles at first but with Iruka's patient guidance, he masters it and is able to perform more complex jutsus. This could also involve some emotional moments between them as Iruka becomes like a father figure to Naruto during the training process.
In some fanfictions, Asuma might train Naruto in stealth and strategy. For example, he could set up mock battles where Naruto has to outwit his opponents using clever strategies rather than brute force. This type of training would add a new dimension to Naruto's ninja skills.
One interesting 'Akatsuki trains Naruto' fanfiction could be one where the Akatsuki members teach Naruto unique jutsu. For example, they might show him some dark - side - influenced ninjutsu that he can then adapt to his own style. Another could involve them training Naruto in stealth and espionage, skills that the Akatsuki are known for.
One interesting 'Nagato trains Naruto' fanfiction could be where Nagato imparts his unique skills and knowledge about the Rinnegan to Naruto. This might include training Naruto in the various abilities associated with the Rinnegan, like the Six Paths techniques.
There could be a fanfiction where Kakuzu trains Naruto in dealing with his chakra in a more efficient way. Since Kakuzu has unique abilities related to his chakra and his multiple hearts, he could pass on some knowledge to Naruto about conserving and using chakra better. For example, he might show Naruto how to distribute chakra evenly throughout his body for faster movement or stronger attacks.
One interesting fanfiction could be 'Minato's Training Legacy'. In this, Minato imparts his unique jutsu knowledge to Naruto in a very detailed and creative way. It might show Minato teaching Naruto how to better control his chakra for the Rasengan, just like he did in the original series but with more in - depth exploration.
In non - yaoi fanfictions, their relationship is often centered around mentorship. Iruka was Naruto's first real teacher and supporter. For example, in many fanfictions, Iruka is the one who encourages Naruto when he is feeling down about not being as good as the other students at first. He gives Naruto the confidence to keep going and improve. This aspect of support and belief in Naruto's potential is a very interesting part of their relationship.
I recommend 'Iruka's Special Training for Naruto'. In this fanfiction, Iruka designs a personalized training regime for Naruto that focuses on his weaknesses and also enhances his natural strengths. It's a great read as it shows the bond between Iruka and Naruto growing stronger through the training.
There could be a fanfiction where Danzo trains Naruto after realizing that Naruto's unique chakra and ability to make friends could be harnessed for the Root's purposes. However, Naruto being Naruto, he would try to influence Danzo to use these skills in a more positive and moral way, leading to an interesting dynamic between the two characters.
One interesting fanfiction could be about Iruka helping Naruto train in a unique way that wasn't shown in the original series. For example, Iruka might take Naruto on a journey to a hidden place where he can learn special jutsu from an ancient master. Another story could be set in an alternate universe where Iruka and Naruto are part of a different ninja clan and have to face new challenges together. There are also fanfictions that explore their relationship in more depth, like how Iruka becomes Naruto's mentor not just in ninja skills but also in life lessons.
One interesting Naruto and Iruka fanfiction could be about their training sessions. Maybe Iruka decides to give Naruto some extra special training after school. They bond over Naruto's progress and Iruka's teachings, and it shows how their relationship grows stronger through these shared experiences.