One common theme is redemption. Both characters have a lot of darkness in their pasts, and in some fanfics, they find a way to redeem themselves through their relationship. For example, they might encourage each other to move away from their villainous ways.
Another theme is power dynamics. Shigaraki is the leader of the League of Villains and Dabi is a powerful member. Fanfics often explore how this power structure affects their relationship, whether it causes tension or cooperation.
Well, there's 'Fusion of Powers' in the 'dabi x shigaraki fanfic' genre. This one is cool because it imagines what would happen if they combined their powers. It's a very creative take on their relationship. And 'Unexpected Comrades' is also worth reading. It shows their journey from being just acquaintances to something more, with some really heart - touching moments.
You can try Archive of Our Own (AO3). It has a large collection of fanfics, including many 'dabi x shigaraki' ones. Just use the search function on the site.
Another theme is the exploration of their differences. Shigaraki represents chaos and destruction while Deku represents hope and heroism. Fanfics usually explore how these two opposing forces interact and influence each other. For example, in some fanfics, they start to understand each other's perspectives better as they spend more time together.
One popular shigaraki x dabi fanfic is 'Fractured Bonds'. It delves into their complex relationship within the context of the My Hero Academia universe. The story shows how their different personalities and backstories interact and create a unique dynamic between them.
One common theme is the exploration of their dark sides. Both Dabi and Toga have rather dark personalities in the original work, and fanfics often dig deeper into that. For example, how their dark natures might attract or repel each other.
A third common theme is the power dynamic between them. Dabi has a certain level of power and mystery, and Toga has her unique abilities. Fanfic may play with how these powers interact in different situations, such as in battles together or in protecting each other. This can add an interesting layer to their relationship in the stories.
The theme of rivalry - turned - friendship is also quite common. At first, they are often portrayed as rivals due to their different outlooks and goals. But as the story progresses in the fanfic, they start to form a bond that goes beyond just being opponents, which makes for some really interesting character development.
The theme of self - discovery is also prevalent. Both characters grow and learn more about themselves through their interactions. They discover new aspects of their powers, emotions, and identities as they navigate their relationship in these fanfics.
One common theme is the idea of redemption. Dabi, with his troubled past, often has a journey towards redemption in these fanfics, and Deku can be a big part of that. Another theme is the exploration of power dynamics. Deku has his own unique power, and Dabi has his, and how they interact with each other in different situations is often explored.
Isolation is another theme. Shigaraki is often depicted as a lonely figure. Fanfics may explore how his isolation affects his actions and decisions, and how relationships (or lack thereof) shape his character in the BNHA context.