One key element is the development of the relationship between Kyuubi and Naruto. It should show how the Kyuubi goes from being just a powerful entity inside Naruto to a source of comfort. For example, it can start by the Kyuubi understanding Naruto's pain. Another element is the way the Kyuubi communicates with Naruto, whether it's through thoughts or dreams. And finally, the fanfic should also show how Naruto's character grows with the Kyuubi's comfort, like becoming more confident.
There's a fanfic named 'Kyuubi and Naruto: An Unlikely Bond'. In this story, the Kyuubi starts to understand Naruto's pain and loneliness. It begins to comfort him by sharing its own experiences from the past. The Kyuubi's presence inside Naruto becomes more of a guiding and comforting force rather than just a source of power.
Kyuubi's comfort can make Naruto more confident. Knowing that he has Kyuubi's support, he may take on more difficult missions without hesitation. For instance, if he's facing a powerful enemy, he'll remember Kyuubi's words of encouragement and stand his ground firmly.
There are also fanfictions where Kyuubi takes Naruto on a mental journey through its memories. This allows Naruto to see the history of the ninja world from a different perspective and gives him a new understanding of his place in it. Kyuubi's presence during this journey as a source of comfort and explanation is quite a lovely concept in these fanfictions.
No. In the Naruto series, Naruto is the host of the Kyuubi, not its slave. Fanfics might deviate from the original concept, but in the official story, Naruto has a symbiotic relationship with the Kyuubi. He gains power from it and eventually befriends the Kyuubi spirit.
Well, Kyuubi might be possessive of Naruto because they have a unique bond. Kyuubi has been inside Naruto for a long time. They've shared experiences, and Kyuubi may see Naruto as its own in a way. Also, Naruto has sort of tamed Kyuubi to an extent, and this might make Kyuubi feel like Naruto is special to it, so it shows possessiveness.
One common theme is the idea of family. Since Naruto lacks a traditional family, Iruka often steps in as a father - like figure in these fics, providing the love and support that Naruto needs. So family - like bond is a big theme.
Another great part is the advice Kakashi gives. He's a skilled ninja and has a lot of wisdom. In some fics, he might teach Naruto a new way to approach a problem, not just in fighting but also in dealing with his emotions towards the villagers who once shunned him. He might say things like 'Naruto, their opinions don't define you. Only you can decide who you are.'
One popular 'kakashi comforts naruto fanfic' is 'A Father's Comfort'. In this fic, Kakashi finds Naruto feeling down after a difficult mission. He takes Naruto out for ramen and then they sit by the river. Kakashi shares his own past experiences of loss and loneliness, making Naruto feel understood and less alone.
One great Fem Naruto Kyuubi fanfic is 'The Nine - Tailed Fox's New Host'. It explores how a female Naruto deals with the power of the Kyuubi in a unique way. The story focuses on her training and how she overcomes various challenges with the help of the Kyuubi's power.