Kakashi could also be a common character. He is Iruka's colleague and they both play important roles in Naruto's life. In time travel scenarios, Kakashi might be involved in helping Iruka adjust to the time - shifted situation or they could work together on a mission that is affected by Iruka's time travel.
Iruka can be a great source of emotional support. He can listen to Naruto and his family's problems and offer advice based on his own experiences. For example, when Naruto is stressed about his Hokage duties, Iruka can remind him of how far he has come and that he can handle it. Also, Iruka can teach Naruto's kids things that Naruto might not have time for, like the history of the village in more detail.
Iruka's teaching is more traditional, focusing on the fundamentals and the proper way to do things. In contrast, Naruto would be more about inspiring the students through his own story. He might say things like 'I was just like you once, and look at me now!' His style would be more about motivation and showing that there are different paths to success in the ninja world. Iruka would be the one to correct the students' form and ensure they understand the basic principles, while Naruto would encourage them to break boundaries and think outside the box.
One common theme is friendship. Many fanfictions explore the friendship between a female character and Iruka, showing how they become close and trust each other. For example, they might share secrets or support each other during tough times.
One popular Kakashi and Iruka lemon fanfiction might be 'The Hidden Feelings'. It delves deep into their relationship with some well - written emotional and romantic scenes. Another could be 'Unexpected Bonds' which shows their connection growing in a unique way. There's also 'Love Beyond the Village' that takes their relationship to different settings and situations.
A prevalent theme is the exploration of gender roles. Since Naruto is female in these fanfictions, it looks at how she navigates the ninja world as a woman. Iruka is often there to support her in this. There's also the theme of trust. Female Naruto learns to trust Iruka, and he in turn trusts her abilities. This mutual trust is a big part of many of these fanfictions.
One great fanfiction could be where female Naruto is a bit more in touch with her emotions. Iruka helps her train in a different way than in the original story. They might have deeper conversations about her place in the village as a female ninja. In this fanfic, their relationship could be more of a mentor - mentee with a hint of a special bond growing.
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.
One great fanfiction might be one where they go on a joint mission and discover new things about each other's pasts. It could explore their friendship and how they support each other during tough times.
Fanfiction.net is also a good place. There are many Naruto fanfictions there. Just use the search function and type in 'iruka and kakashi' to find relevant stories. However, the quality may vary, so you might need to browse through a few to find the good ones.