One possible plotline could be Kakashi teaching Naruto some of his unique ninja techniques in more detail, like how to better use the Rasengan. Another could be Kakashi helping Naruto deal with his inner demons regarding being an orphan and the Nine - Tails. Maybe there's a plotline where Kakashi trains Naruto to be a more strategic fighter, not just relying on brute force.
A great plotline could be that Kakashi, in raising Naruto, reveals to him the true nature of the Fourth Hokage's sacrifice. This would not only deepen Naruto's understanding of his father but also give him a new perspective on his own life and purpose. Kakashi could then train Naruto to live up to his father's legacy in a more profound way.
One possible plotline could be Minato teaching Naruto special jutsu early on. Since Minato was a very powerful ninja, he could pass on his knowledge of the Flying Thunder God Technique to Naruto at a young age, which would make Naruto even more formidable in battles against early foes.
One possible plotline could be Kushina teaching Naruto some of her unique Uzumaki clan jutsus early on. This would give Naruto an edge in battles and also a deeper connection to his heritage.
Another plotline might involve Naruto facing a new and powerful enemy while under Kakashi's tutelage. This could test not only Naruto's skills but also the bond between him and Kakashi. For example, they might encounter a rogue ninja from a hidden village who has a vendetta against Konoha. Kakashi would then have to teach Naruto new strategies to defeat this enemy.
Perhaps the fox starts to develop human - like emotions and behaviors under Naruto's care. This could lead to some really heartwarming moments as Naruto helps the fox understand things like friendship and loyalty. They could then form an even stronger bond that surprises everyone in the village.
One possible plotline could be Obito teaching Naruto some unique jutsu that he learned during his time in Akatsuki. For example, he might show Naruto how to use certain space - time ninjutsu in a different way. Another could be Obito helping Naruto understand the Uchiha clan better, given his own Uchiha heritage.
One possible plotline could be Kakashi teaching Naruto some super - advanced jutsu that Naruto then uses to surprise his friends in a sparring match. For example, Kakashi might teach Naruto a special lightning - style jutsu that Naruto masters and combines with his Rasengan.
In some fanfictions, there could be a plot where Naruto and Kakashi get transported to a different dimension. In this strange new world, they have to find their way back home while facing various challenges. Along the way, they learn more about their own strengths and weaknesses and how their partnership is crucial.
Perhaps a plot where Naruto's determination in the face of some sort of 'heat' - like a difficult situation in the village, and Kakashi is there to guide him. It could involve Naruto learning new jutsus under Kakashi's tutelage while also dealing with his own growing pains.
Well, in some 'kakashi teaches naruto fanfiction', there might be a plotline where Kakashi teaches Naruto how to better control his chakra. This could involve some really intense training sessions deep in the forest. Also, Kakashi could be teaching Naruto about the art of stealth and infiltration, skills that Naruto doesn't have much experience with but are crucial for a ninja.