You could also create a 'naruto sensei fanfic' where Naruto takes on a special student from a foreign land. This student has different chakra abilities that Naruto has never seen before. Naruto has to adapt his teaching methods to help this student master their powers while also learning from the student's unique skills.
One idea could be a crossover where Naruto characters end up in the Mahou Sensei Negima world and have to adapt to the magic there. Maybe Naruto tries to learn magic instead of chakra techniques.
One idea could be Naruto being trained by Kakashi's father, Sakumo. Since Sakumo was known for his skills, he could teach Naruto some unique jutsu and a different perspective on being a ninja. Another plot could involve Naruto being mentored by Tsunade's younger brother Nawaki. It would change Naruto's development as Nawaki might have his own special way of teaching. Maybe he'd focus more on medical ninjutsu combined with combat skills.
Perhaps the Jounin sensei has a secret connection to an ancient ninja art that he wants to pass on to Team 7. However, there are others in the ninja world who also want this power. The story could revolve around the sensei protecting his team while also trying to teach them this new art. This would involve a lot of action - packed scenes where they are constantly on the run from enemies. At the same time, the sensei could be teaching them important life lessons about loyalty, sacrifice, and the true purpose of being a ninja.
One interesting concept could be how the genius sensei in the fanfic imparts unique ninja skills to the students. For example, they might introduce new jutsu combinations that are not seen in the original Naruto series. This can add a fresh perspective to the Naruto universe.
Another plot could involve a lemon - growing competition among the students, and Koro Sensei serves as the judge. He gives out his unique rewards and punishments based on how well the students grow their lemons. Along the way, there are funny mishaps and heartwarming moments as the students learn about gardening and competition.
A great plot could be Itachi teaching Naruto how to control the Nine - Tails' chakra in a completely different way than Jiraiya did. Since Itachi has such a deep understanding of chakra and its nature, he could offer unique insights. Also, there could be a story where Itachi and Naruto are forced to team up against a common enemy that is using an ancient and powerful jutsu. In the process, Itachi passes on some of his Uchiha clan's wisdom to Naruto. And perhaps, Itachi could help Naruto deal with the loneliness that often comes with being a jinchuriki, as Itachi has also felt isolated in his own way.
One idea could be that Naruto, as a sensei, takes on a student who has a similar past to Zabuza. He uses his knowledge of Zabuza's story to teach the student about redemption. For example, Naruto could tell the student how Zabuza was once a feared assassin but had a side that was capable of love and loyalty, as seen with Haku.
A great plot could be that Naruto, as sensei, takes Team 7 on a diplomatic mission to another hidden village. Along the way, they face various challenges that test their teamwork and understanding of different cultures. This could lead to some interesting character development for the members of Team 7. Another idea is that Naruto discovers a prophecy related to one of the Team 7 students. He then has to train and guide this student to fulfill their potential and avoid a dark fate predicted in the prophecy. And there could be a story where a powerful enemy targets Team 7 specifically because of Naruto's influence on them, and Naruto has to find a way to protect his students while also uncovering the enemy's motives.
One idea could be Naruto teaching Anko a new jutsu. He could use his unique experiences and skills to help her expand her abilities. Another plot could involve them going on a mission together where Naruto has to rely on Anko's knowledge of certain areas or enemies. For example, Anko might be familiar with a particular type of snake - related enemy, and Naruto has to trust her expertise.
One interesting 'Naruto Danzo Sensei' fanfiction could be about his early days as a ninja and how he developed his strict and secretive ways. It might explore his relationships with his peers at that time.