A common theme is their bond. Since they are friends in the original story, fanfics often explore how deep that bond can be. It could be a story about loyalty, where they are always there for each other no matter what.
Good 'bnha mirio x tamaki fanfic' often has well - developed characters. It should stay true to their personalities as seen in the original BNHA. For example, Mirio being the confident and positive one, and Tamaki being shy and reserved. Also, a great plot is key. It could be about their friendship growth, or how they face challenges together. And the writing style should be engaging, making the readers feel the emotions between them.
One great 'bnha mirio x tamaki fanfic' is 'Sunshine and Shadows'. It beautifully explores their relationship, showing Mirio's bright and positive nature complementing Tamaki's more introverted personality. Another one is 'The Bond Beyond Heroes' which delves into how their friendship evolves into something deeper during their hero training days. There's also 'Mirio and Tamaki: A Different Kind of Teamwork' that focuses on their teamwork in battles and how that strengthens their connection off - the - battlefield.
The theme of loyalty also pops up often. They are shown to be extremely loyal to each other. In some fanfics, when one of them is in danger, the other will go to great lengths to protect them, no matter the cost, which really emphasizes the strength of their relationship.
Another theme is growth. Fanfictions often show how both characters grow as individuals and as a pair. Tamaki might become more confident with Mirio's influence, and Mirio could also learn important lessons about himself through his relationship with Tamaki. It's all about their mutual development.
One great place to find tamaki x mirio fanfiction is Archive of Our Own (AO3). There are many well - written stories there. You can search for tags like 'tamaki x mirio' or 'Tamaki Amajiki' and 'Mirio Togata' to narrow down the results.
One popular plot idea could be a crossover with another well - known anime. For example, a crossover with Naruto. Mirio could find himself in the Hidden Leaf Village and have to adapt to the different chakra - based powers while also showing off his Permeation ability. Another idea is a crossover with a superhero universe like the Marvel Universe. He could team up with Spider - Man and learn about different kinds of heroism in that world. A third plot idea could be a time - travel crossover where Mirio travels back in time to the early days of hero society in the My Hero Academia world and has to deal with different rules and villains from that era.