A really cool fanfic could be set during a time when the village is under threat. Kakashi mentors Naruto intensively to prepare him for a big battle. He teaches Naruto advanced combat strategies and how to better control his chakra. In this fanfic, Naruto's growth under Kakashi's mentorship is the central focus, and it shows how their relationship deepens as they face the impending danger together.
There might be a fanfic where Kakashi mentors Naruto in the art of stealth. Naruto, who is often brash, has to learn to be quiet and sneaky under Kakashi's guidance. Kakashi shares his own experiences from his ANBU days to teach Naruto how to be a better ninja in this aspect. This makes for an exciting read as Naruto struggles and then gradually masters the new skills.
One interesting fanfic could be where Kakashi takes Naruto on a special training journey outside the village. They encounter rare beasts and Naruto learns unique jutsu from Kakashi during this adventure.
You can try fanfiction.net. It has a large collection of Naruto fanfics, and you can search specifically for ones where Kakashi mentors Naruto. Just use the search bar and type in relevant keywords.
One common plot is Naruto seeking alternative mentors. Since Kakashi is neglecting him, he might look for other ninja in the village who can teach him. Another plot could be Naruto trying to prove himself to Kakashi by achieving great feats on his own. Some fanfics also show Naruto developing a closer bond with other outcasts in the village as he feels neglected by Kakashi, who is supposed to be his teacher.
One great fanfic could be 'The Unseen Training'. In this, Kakashi uses his amazing skills to train Naruto in unique ways that are not shown in the original series. It really showcases Kakashi's role as an amazing sensei.
One common plotline is Naruto seeking out other mentors. Since Kakashi is neglecting him, he might look for someone like Jiraiya earlier than in the original story.
One great 'Naruto Kakashi's Sharingan' fanfic could be 'The Legacy of the Sharingan'. It delves deep into how Kakashi's Sharingan not only affects his combat abilities but also his relationships with other characters like Naruto. It might show how he passes on some of his knowledge related to the Sharingan to Naruto.
One common theme is mentorship. Since Kakashi was Naruto's teacher, many fanfics explore how that relationship continues to develop over time. Another theme is mutual respect. They both respect each other's abilities and this is often highlighted in the fanfics.
One key element is the mentor - student relationship. Kakashi being Naruto's teacher, this relationship is often explored in depth. Another is the growth of Naruto under Kakashi's guidance. Also, their shared experiences during missions and battles play an important role in most of these fanfics.
One interesting Kakashi x Naruto fanfiction could be where Kakashi takes Naruto on a special training mission outside of Konoha. In this story, Kakashi could teach Naruto some unique jutsu that he doesn't learn in the original series. This would not only strengthen their bond but also make Naruto a more powerful ninja.
One interesting 'Kakashi Kiss Naruto' fanfiction could be where Kakashi shows his deep affection for Naruto in a moment of extreme danger. He might kiss Naruto to transfer some of his chakra in a very unique and unexpected way, which is different from the normal chakra transfer methods in the Naruto universe.
There are fanfictions where Kakashi and Naruto time - travel. They could end up in the past, during the era of the First Hokage. This would change the course of history as they know it and they'd have to figure out how to get back while also dealing with the different political and ninja situations of that time.