Yes, there are quite a few. You can start by looking on fanfiction websites like Archive of Our Own. Just search for 'izuku is power girl' and you'll likely find some interesting reads. Some might focus on their unique friendship, while others could explore more romantic relationships between them.
One common theme is the discovery of new powers. Since Izuku is often associated with his journey to gain powers in his original story, when paired with Power Girl, there could be a focus on how he either adapts to her powers or discovers new ones through their connection. Another theme could be the culture shock. Power Girl comes from a different world in a sense, so Izuku dealing with that aspect is often explored.
He might do it for a bet. Just like some friends might bet on who can pull off a crazy stunt, his friends could have bet him that he can't dress like a girl and act the part for a certain period.
Obviously, Bakugo would be one of the most affected. His relationship with Izuku has always been complex, and Izuku becoming a girl would surely change the dynamic between them. He might have to re - evaluate his feelings of rivalry and superiority. All Might would also be affected. As Izuku's mentor, he would need to adjust his training methods and support system to fit Izuku's new situation as a girl.
Izuku might become more self - conscious about her appearance in this fanfiction. Since she is a girl, she could face different beauty standards, which may influence her confidence in different ways compared to when she was male - presenting in the original story.
In a fanfiction where Izuku has a different power, let's say the power to communicate with animals. Mina finds this power fascinating. Izuku uses this power to gather information from animals about the villains' plans. Mina supports him by coming up with strategies based on the information Izuku gets. Their teamwork becomes a key factor in their heroics, and they also develop a deeper bond as they rely on each other more and more.
Let's say Izuku has a power of super - strength in this fanfiction, but it's different from the normal kind. It only activates when he's in a state of extreme calm. Mina helps him find ways to reach that state. They go through various situations where Izuku has to use his power. Sometimes it works, sometimes it doesn't. But through all of this, they support each other, and their relationship evolves into a strong partnership and a deep friendship.
Perhaps in this fanfiction, Izuku as a girl might face different challenges in the hero world. Society could have different expectations of a female hero, which would add a new layer to her character development. She might have to deal with sexism while trying to prove herself as a capable hero, just like real - world female heroes often do.
Well, in many fanfictions, Izuku's power over nature might start off as a small, barely controllable ability. Maybe it first shows up in a moment of extreme stress or danger. As the story progresses, he could start to practice and understand it more. He might learn from nature itself, like observing how plants grow or animals adapt, and use those lessons to develop his power further.
Another characteristic is her complex identity. In some fanfiction, her connection to other characters, like Superman, is explored. Her Kryptonian heritage might also be delved into, showing how it shapes her in the fan - created stories. Her dual identity, both as a superhero and as an ordinary person (to an extent), adds depth to her character in these fictional tales.