Yes, there are quite a few. You can start by looking on popular fanfiction websites like FanFiction.net or Archive of Our Own. Some of these fanfictions might explore unique relationships between Naruto and Shinso, such as them teaming up on a mission in a crossover universe. They often add new storylines and character developments that are not in the original Naruto or Boku no Hero Academia (where Shinso is from) series.
One common theme is friendship. Despite coming from different universes, Naruto and Shinso could form an unlikely bond. Another theme is power exploration. Shinso's unique power in his own universe compared to Naruto's ninja powers can lead to interesting power - related storylines. For example, they might train together to combine their powers in some way.
Well, the plot could start with Naruto being turned into a Shinso Vampire in some mysterious way. Maybe during a mission in a strange land, he gets bitten by a powerful Shinso Vampire. Then, he has to deal with his new powers and cravings while still trying to protect the Hidden Leaf. His friends might initially be scared of him, but as they learn more about his situation, they try to help him control his vampire side.
In 'naruto shinso vampire dxd fanfiction', the theme of adaptation is quite prominent. Characters are thrust into a completely new environment with different rules and species. They need to adapt to survive. Another theme is the struggle for power and control. With the addition of Shinso powers and vampirism, there are often power struggles within the story, whether it's between different factions in the DxD world or between Naruto characters and the new elements they've acquired.
Well, for a fanfiction like this, Naruto could bring his ninja training and knowledge of different jutsus. Shinso's presence would add a psychological aspect as he can mess with people's minds. They could get involved in the power struggles in the Vampire Highschool DxD world. Maybe they side with a particular group, like the Gremory family, and help them in their battles against other factions. It would be a story full of action, mystery, and new friendships as Naruto and Shinso navigate this strange new world.
Naruto and Shinso are the primary ones. But we could also have an old and wise vampire elder as a main character. This elder could have knowledge about a prophecy that involves Naruto and Shinso, and his actions and decisions would drive a lot of the plot as he tries to either fulfill or prevent the prophecy.
One possible fanfiction could involve Naruto's ninja skills in the world of Vampire Highschool DxD. Maybe he uses his shadow clone jutsu to outwit the devils and vampires. Shinso could use his mind - control quirk from My Hero Academia (assuming that's where he's from in this crossover) to manipulate the various supernatural beings. It would be a chaotic yet exciting mix of different anime universes.
A cool plot could be that a powerful vampire targets Naruto because of his unique chakra. Shinso gets involved as he senses something is wrong with Naruto. They discover that the vampire wants to use Naruto's chakra to break a curse on their clan. Shinso and Naruto must decide whether to help the vampire or fight against it.
One popular 'naruto shinso vampire dxd fanfiction' could be those that focus on crossovers between the Naruto and High School DxD universes with the addition of the Shinso elements. For example, some fics might explore how Naruto characters interact with the devils and vampires in the DxD world while having Shinso powers.
One possible plotline could be that Shinso, who has some sort of vampire - like abilities, gets transported into the Naruto world. He might have to hide his true nature from the ninja there while also using his powers to help or hinder the characters. For example, he could use his mind - control ability (if it's related to the vampire concept) to influence battles.