One common theme is the power dynamic. Since the vampire is often in a position of power and the host is in a more vulnerable state, how they navigate this power difference is a big part of many stories.
One popular Vampire Host Fanfiction is 'The Vampire's Hostage'. It has an interesting plot where the main character becomes a hostage to a powerful vampire and a unique relationship develops between them over time.
Well, if the host characters read the host fanfiction, it might result in a new perspective for them. They could gain insights into how their fans view them and their relationships. It might also inspire them to interact more with their fans, perhaps even using some of the ideas from the fanfiction in a positive way, like in fan events or social media interactions. For example, if a fanfiction has a really cool backstory for a character, they could reference it playfully to engage the fans.
Naruto would probably be a very popular host. His sunny personality and ability to make people laugh would draw in a lot of customers. He's always full of energy and has a big heart, which would make guests feel welcome and happy in the host club.
Gray would be a popular host. His cool and aloof demeanor would attract a lot of customers. Girls might be drawn to his mysterious side and his good looks. Plus, his habit of accidentally stripping could add some comical moments to his hosting sessions.
Romance is likely to be a big theme. Given the nature of Ouran High School Host Club which is centered around the hosts and their relationships with clients, and adding the element of a vampire Bakugou in the mix of the My Hero Academia universe, there could be complex love triangles or unique romantic pairings.
You can try fanfiction platforms like Archive of Our Own (AO3) or Fanfiction.net. These sites have a vast collection of fan - created works, and by using the relevant tags such as 'My Hero Academia', 'Ouran High School Host Club', and 'Vampire Bakugou', you should be able to find some interesting fanfiction.
Some 'the host fanfiction' might center on the development of secondary characters. Writers often take these less - explored characters and build entire storylines around them. This not only gives more depth to the overall 'the host' universe but also allows readers to see different aspects of the world created in the original work.