Often, the theme of growth is present. Deku is constantly growing as a hero, and Midnight could play a role in that growth, either by inspiring him or directly training him. And there could be a theme of the unlikely pair, as they are quite different in age and personality, which makes for an interesting dynamic in the fanfics.
One popular Midnight x Deku fanfic might be 'Midnight's Guidance'. In this fanfic, Midnight could be portrayed as a mentor figure to Deku, guiding him in ways that are different from his regular teachers at UA. She might use her unique quirk knowledge to help Deku enhance his own quirk.
Some Tumblr blogs also focus on My Hero Academia fanfics. Look for ones that are dedicated to Deku or Midnight. They may have curated lists or even their own original 'Deku x Midnight' fanfics. It's a matter of exploring different blogs until you find something interesting.
You can try Archive of Our Own (AO3). It has a large collection of fanfics, and you can easily search for Midnight x Deku fanfics using the search function. Just type in 'Midnight x Deku' and it'll show you relevant results.
One common theme is the power dynamic. Given that Midnight is an established pro - hero and Deku is an up - and - coming hero, there can be a lot of exploration of how power plays into their relationship. Another theme could be mentorship turned into love. If Midnight was initially Deku's mentor in some way, the story could be about how that relationship evolves into something more intimate.
One aspect of deku and midnight love fanfiction could be exploring their relationship in an AU (alternate universe). Maybe in a world where Deku isn't just a student but an equal hero to Midnight, and their relationship develops from mutual respect to something more romantic. They might go on adventures together and discover new feelings along the way.
In a 'Villain Deku x Todoroki Fanfic', the characterizations would be key. Deku as a villain could have a new set of motives. For example, he might be disillusioned with the hero system and decide to take a different path. Todoroki, on the other hand, might be initially conflicted about his feelings for Villain Deku. Their relationship could be a complex mix of attraction and moral conflict. The fanfic could also explore how their combined powers might be used in different ways compared to their usual heroic uses. Maybe they form a sort of anti - hero duo that challenges the traditional notions of good and evil in the My Hero Academia universe.
In such a fanfiction, the jealousy aspect can also add a lot of drama. For example, if Deku is oblivious to Kacchan's jealousy, it can create misunderstandings. Kacchan might misinterpret Deku's friendly gestures towards others as something more, and this can cause tension. It's a great way for fanfic writers to delve into the psychological aspects of these two beloved characters and create engaging stories.
The 'Villain Todoroki x Deku' fanfiction might also focus on power dynamics. Since both characters have strong quirks, how they use or misuse their powers in relation to each other can be fascinating. For example, Todoroki's ice and fire powers could be used in more menacing ways as a villain, and Deku would have to find new strategies to counter him while still trying to save him from his villainous ways.
I'm not entirely sure specifically what a 'urakaka x deku fanfic' is about without reading it. But generally, it could be a fan - created story that involves the relationship or interactions between characters named Urakaka and Deku. It might explore their friendship, adventures together, or even some unique scenarios in the world of the original story they are from.