It could be an original character created by the fanfiction author. This character might be a descendant of the original Kyuubi, but with a female form and her own distinct personality.
At first, Naruto might be a bit scared or hesitant. But as the female Kyuubi shows her care and concern for him, he would start to trust her. They would gradually develop a mother - son type of relationship. The female Kyuubi could be strict at times to make Naruto a better shinobi, but also very loving.
There could also be a romantic relationship in some fanfics. This would bring a whole new dynamic to the Naruto universe. It might start with small moments of mutual understanding and attraction, gradually evolving into a full - fledged love story. However, this would also face many challenges, like the differences in their nature (human vs. tailed beast) and the opinions of others in the ninja world.
Naruto, Hinata and female Kyuubi in fanfiction are important as they allow for a different exploration of the power structure in the Naruto world. Naruto has the power of the Nine - Tails, and a female Kyuubi could bring a different perspective to that power. Hinata, with her Byakugan, could interact with this new power dynamic in unique ways. It could also show how their relationships evolve not just on a personal level but also in terms of how they are perceived in the ninja community. For example, if the female Kyuubi is accepted, it could change the way Naruto and Hinata are viewed as well.
One well - written female Kyuubi character could be the one who is depicted as having a complex personality. For example, she might be fierce in battle but also show vulnerability when it comes to her relationship with Naruto. Another could be a female Kyuubi who has a strong sense of justice, despite her origin as a powerful and sometimes feared entity. This kind of character adds depth to the fanfiction.
You can start by looking on fanfiction websites such as Archive of Our Own (AO3). There are often specific tags for different pairings like 'female Naruto' and 'female Kyuubi'. Many authors explore this unique pairing there, and you can filter the results to find exactly what you're interested in.
One interesting fanfiction could be where the female Kyuubi has a special bond with Hinata and helps her in her relationship with Naruto. For example, she might use her powers to give Hinata the confidence to confess her feelings to Naruto. Another could be a story where all three of them team up to fight a new, powerful enemy in the ninja world. The female Kyuubi's strength combined with Naruto's and Hinata's skills would make for an exciting adventure.
One idea could be a fanfiction where a female Naruto in her fox costume has to use the power of the Kyuubi to protect the village from a new, powerful enemy. She might struggle at first, as the villagers are still a bit skeptical of her because of the Kyuubi within her. But as she battles, she shows them her true strength and earns their respect.
Perhaps the fanfiction's plot could be about a female who inherits the Kyuubi - female Naruto costume from her grandmother, who was also a great ninja. The costume has some hidden powers that only activate when the wearer faces true danger. As she uncovers these powers and the history behind the costume, she also has to protect her village from a new and powerful enemy.
Well, in fanfiction with Naruto, Hinata and a female Kyuubi, there are various directions it could take. One possibility is that the female Kyuubi has her own personality and goals. She might initially be at odds with Naruto and Hinata but then gradually come to understand them. Hinata could play a role in bringing the female Kyuubi closer to Naruto. They could form a team where Hinata's gentle nature balances out Naruto's impulsiveness and the female Kyuubi's wildness. This could result in some exciting adventures and character growth for all of them.