There might be. A lot of fanfiction platforms host Naruto - related stories. You should search using specific keywords in the search bar of those platforms. But be aware that not all of them will be well - written or adhere to the general 'feel' of the Naruto universe.
When writing a 'Naruto x fem Jashin' fanfiction, start by creating a unique fem Jashin character. She could have a backstory that led her to the Jashin cult, like a tragic past. Then, build the relationship with Naruto. It could be a slow - burn romance or a strong friendship. You can also incorporate elements from the Naruto universe, such as chakra - based powers and different ninja techniques. Make sure to have a clear plotline, whether it's about saving the village from a Jashin - related threat or the fem Jashin's personal redemption journey.
One popular 'Naruto x fem Jashin' fanfiction could be 'Naruto and the Jashin Priestess'. In this type of fanfic, it might explore an interesting relationship dynamic between Naruto and a female Jashin follower. Maybe she has her own set of beliefs and powers related to Jashin, and Naruto has to deal with her in a world full of shinobi politics and battles.
One common theme is the clash of beliefs. The Jashin religion is often very different from the values in the Naruto world, so fanfictions explore how the fem Jashin character deals with this. For example, she might have to choose between her loyalty to Jashin and her new relationships in Konoha.
In some Naruto x Jashin fanfictions, the plot could revolve around a character who is both a follower of Jashin and has a personal vendetta against Naruto. This character could try to corrupt Naruto's friends first, slowly isolating Naruto. Then, they would attempt to make Naruto join the Jashin cult by showing him false promises of power and a way to end all the wars in the ninja world.
One idea is that Naruto himself gets involved with the Jashin cult in a negative way, perhaps being tricked. But then, he realizes the error of his ways. He could then try to redeem himself by using his influence to change the cult from within. He might start teaching the followers about the value of life and peace, which are the opposite of what Jashin stands for. This would be a great exploration of redemption in the context of the fanfiction.
One great fem Naruto x fem Kyuubi fanfiction could be one that focuses on their unique bond. It might explore how they interact in a world where Naruto is female and the Kyuubi also takes a female form. For example, it could show them teaming up against common enemies and how their combined powers are different from the original story.
One great Naruto x fem vampire fanfiction is 'The Vampire in Konoha'. It has an interesting plot where the female vampire character has unique powers and her relationship with Naruto develops in a really engaging way. They face many challenges together, both from the shinobi world and the vampire lore within the story.
In a Naruto x fem wolf goddess x fem kyuubi fanfiction, the fem wolf goddess could represent a more spiritual or wild aspect. She might introduce Naruto to a different side of the ninja world, one that is more in tune with the natural order. The fem kyuubi, on the other hand, could have a more fiery and powerful personality. The story could revolve around Naruto trying to balance the influence of both characters while also dealing with his own growth as a ninja.