Often, there could be a theme of Izuku bringing his values from his original world into the dragon world. For example, his sense of justice and determination to help others might lead him to interact with the dragons in unique ways, perhaps even uniting different dragon tribes or helping dragons in need. This can also be a way to explore how his character develops in a completely different and fantastical setting.
Another theme might be the relationship between Izuku and the dragons. It could range from him being a dragon tamer to having a more spiritual or symbiotic connection with them. In some cases, the dragons could represent a new form of challenge or obstacle for Izuku to overcome in his growth as a character.
A sense of isolation can be a theme too. Having a unique dragon quirk might make Izuku feel different from others at first. He could be ostracized or misunderstood by some of his peers. But then as the story progresses, he finds ways to connect with others and use his quirk for the greater good, turning that initial isolation into a strength.
I'm not sure about a specific 'izuku among dragon look fanfic' off the top of my head. But you can try searching on popular fanfic websites like Archive of Our Own or Fanfiction.net. They usually have a wide variety of fanfics and you might be able to find what you're looking for by using relevant keywords in their search bars.
In these fanfics, the theme of transformation is often present. Female Izuku might transform into a dragon or have dragon - like features, which represents a change in her identity. This ties into the theme of acceptance. Katsuki has to accept this new Izuku, and Izuku has to accept her own new identity. Also, the theme of adventure is common. They often go on adventures together, facing challenges that test their relationship and their individual strengths.
One common theme is power - up. Izuku gains the abilities of a dragon slayer, which makes him much stronger. Another theme is the exploration of a new identity. He has to figure out how to be both a hero - in - training and a dragon slayer.
Well, often you'll see themes related to the relationship dynamics. For example, how his relationship with his partner (whoever that may be in the fanfic) changes. There could also be themes about the future of Izuku's hero career in light of the pregnancy, like whether he'll take a break or find new ways to be a hero while being a parent.
Friendship and rivalry are also common themes. Just like in the original story, a female Izuku would have friends and rivals. Fanfics might explore how these relationships are different or similar. For example, her relationship with Bakugo could have a new dynamic. It might also show how she bonds with female characters in ways that a male Izuku might not.
Often, there's the theme of Izuku building a unique team. Just like in a game, he recruits classmates or other characters who have skills that complement his. This team then goes on to face various challenges together, both in the hero world and in virtual gaming - like scenarios. There's also the theme of Izuku unlocking hidden powers or abilities through his gamer knowledge, which is really exciting for readers.
One common theme could be the relationship development between Momo and Izuku. The pregnancy might act as a catalyst for them to grow closer and face new challenges together.
One common theme is rivalry - turned - friendship. Their initial intense rivalry in the original story often forms the basis, and fanfics explore how it can transform into a deeper bond. For example, they might start to train together and realize they can learn a lot from each other.
A common theme is growth. Both Izuku and Setsuna often grow as characters, learning from each other's strengths and weaknesses. For example, Izuku might teach Setsuna about perseverance, while Setsuna could show Izuku how to be more adaptable.