Healing is another major theme. Fanfics often explore how Eri heals from her traumas with the help of the kind - hearted characters in My Hero Academia. This can involve her mental and emotional healing as well as learning to live a normal life.
One interesting 'eri my hero academia fanfiction' could be about Eri learning to control her quirk in new and unexpected ways. For example, she might start to use it not just for healing but also for defensive purposes, like creating shields made of her horn fragments. Another could be a story where Eri forms a special bond with one of the other students at UA, perhaps someone like Deku, and they train together to help her gain more confidence in her abilities.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of 'eri my hero academia fanfiction' with different ratings and themes. Another option is FanFiction.net, which also has a decent number of stories related to Eri in the My Hero Academia universe. Just be sure to check the reviews and ratings of the stories to find the good ones.
Maybe the fanfiction could focus on Eri's growth under Izuku's care. She starts to see herself as a normal girl with a powerful quirk, not just a tool. Izuku helps her with her schoolwork, they cook together, and he tells her stories about All Might. As time passes, Eri becomes more confident and starts to think about how she can use her quirk to help others, just like Izuku does. She might even start to train to become a hero herself one day.
There's also 'Growth Together'. This fanfic shows how Deku and Todoroki support each other during tough times at UA. They face challenges not only from villains but also from within the school. Their relationship develops as they help each other overcome these obstacles.
One idea for a Deku's Quirk fanfiction could be exploring what would happen if Deku's quirk manifested in a different way. For example, instead of having to gradually control One For All, he suddenly has full mastery from the start. This could lead to a very different story arc where he is immediately seen as a top - tier hero - in - training, causing envy and admiration in equal measure among his classmates.
One idea could be a fanfiction where Deku's quirk suddenly mutates. Instead of just having One For All, he starts to develop an additional power related to it, like the ability to share a fraction of One For All's power with his friends temporarily to boost their own quirks in a time of great need.
There are fanfictions where Deku teams up with unexpected characters. For example, he might partner with a minor villain who has a change of heart. This creates interesting dynamics and new story arcs that deviate from the original plot but still stay true to Deku's character.