Yes, there might be. There are many fanfic communities out there where such stories could exist. You could try searching on popular fanfic websites like Archive of Our Own or FanFiction.net.
Well, it could be about Jiro falling in love with Mimiko who is a vampire. Maybe Jiro discovers Mimiko's secret and has to decide whether to accept her or not.
Often, in momo x bakugou fanfic, there's a contrast between Momo's calm and intelligent nature and Bakugou's fiery and aggressive one. This contrast creates a lot of interesting dynamics.
One common theme is the exploration of their complementary personalities. Todoroki is often seen as reserved and Momo as intelligent and responsible. Fanfics like to show how these traits can create a harmonious relationship.
One common theme is growth. Both Momo and Deku are characters with great potential, so in many fanfics, they help each other grow, whether it's in terms of their quirk development or their personal development.
One common theme is friendship. Often, the stories start with a simple friendship between the reader and Momo and then develop into something deeper. For example, they might start by sharing common hobbies like reading books or listening to music.
One aspect of Toshiro Hitsugaya x Momo Hinamori fanfiction is the emotional depth. Since they have a long - standing connection, fanfictions may play with the idea of unspoken feelings. Maybe Hitsugaya has always been secretly protecting Hinamori, and in the fanfiction world, these feelings could be more openly explored. It could also involve Hinamori realizing her true feelings for Hitsugaya after some sort of event that makes her see him in a new light.
Growth is also common. Momo might help Nana become more open - minded, or Nana could teach Momo about responsibility. In some fanfics, this growth is shown through their shared experiences, like facing a difficult situation together which forces them to step out of their comfort zones and change for the better.
Friendship is a very common theme. Writers often explore the deep bond between momo and mina, how they support each other through various situations in their fictional worlds.