One common theme is the conflict between their different ideologies. Stain has his extreme views on heroes, while Iida has a more traditional heroic view. This contrast often creates an interesting dynamic in the stories.
One place to find Stain x Iida fanfiction could be Archive of Our Own (AO3). There are often many creative and well - written stories there. Just search for 'Stain x Iida' in the search bar and you'll get a list of relevant fanfictions.
Well, it could be that Stain kidnaps Iida to use him as a bargaining chip against other heroes. He might think that by having Iida in his custody, he can make demands on the hero community, like asking for changes in how heroes operate or for certain heroes to be punished. Another possibility is that Stain wants to prove a point to Iida about the flaws in the hero system. He may hold Iida captive and show him examples of what he believes are the wrongdoings of heroes, trying to sway Iida's loyalty from the hero side to his own view of justice.
The story could progress with Iida trying to escape on his own. He might use his intelligence and his quirk in unexpected ways to break free from Stain's clutches.
One common theme is growth. Both Iida and Momo are characters with great potential for growth in the original series. In fanfiction, they often grow together, whether it's in terms of their quirk development or personal relationships.
The contrast between their personalities. Aoyama is flamboyant and a bit of an attention - seeker, while Iida is very serious and by - the - book. This creates an interesting dynamic in fanfictions where the writers can explore how they interact, whether it's in a romantic or a platonic sense.
One common theme is mutual growth. They both inspire each other to become better heroes. For example, Deku's determination might push Iida to be more fearless, and Iida's sense of order and discipline can influence Deku to be more organized in his hero training. Another theme is friendship - turned - romance. Usually, they start as friends and classmates, and then as they get to know each other better, romantic feelings develop.
Another theme is the support they give each other in their respective goals. Hatsume with her inventions and Iida with his hero training. In many fanfictions, they help each other grow, for example, Hatsume might come up with a gadget that helps Iida in his combat training, and Iida might give Hatsume some advice on how to present her inventions better.
One common theme is friendship development. Since they are classmates in the My Hero Academia universe, many fanfictions explore how their initial acquaintance turns into a deep friendship. For example, they might start off just as study partners and gradually become more like siblings who support each other no matter what.
A strong plot is also a key characteristic. It could involve the two characters going through challenges together, like facing a powerful villain or dealing with personal issues within the hero academy. This not only tests their relationship but also gives room for growth. Another aspect is the accurate portrayal of the My Hero Academia universe. Fans like to see the fanfiction fit within the established world, with references to quirks, hero rankings, and school life. It makes the story feel more immersive.