One common theme is the exploration of unrequited love. It could be that a female character has feelings for Plisetsky but is too shy or afraid to express them. Another theme is the struggle against societal norms. In some fanfictions, the female characters may face difficulties in their relationship because of the world they live in that may not be accepting of yuri relationships.
Some fanfiction platforms like FanFiction.net might also have female yuri Plisetsky fanfiction. However, it may be a bit harder to find compared to AO3. You could try searching for key phrases like 'Plisetsky and female character yuri' to see if anything relevant pops up. Another option is to join fan communities dedicated to the source material of Plisetsky and ask for recommendations there. They might be able to point you to some great works that fit the female yuri genre.
Rivalry - since they are both skaters in the same field. The fanfiction might show their competition on the ice and how that affects their relationship off the ice. For example, their rivalry could fuel their personal growth and eventually lead to a more amicable relationship. It can be really interesting to see how different authors handle this aspect.
There are often fanfiction communities on social media platforms like Tumblr. You can look for relevant tags like #otabekaltinxyuriplisetskyfanfiction to discover some great works. However, the quality can vary greatly, so it might take some time to find the really good ones.
Bakugou might react with his usual anger. He could lash out at the bullies verbally or even physically, which might make the situation worse. For example, if someone makes a snide comment, he could respond with a loud and aggressive retort.
Bakugou might be initially shocked. He's used to Izuku calling him 'kacchan' for so long that it's become a normal part of their relationship. So, when Izuku stops, it could throw him off balance.
A villain like Shigaraki would likely be interested in the power levels in the MCU fanfiction. He's always looking for ways to increase his own power, and seeing the various powerful artifacts and abilities in the MCU might give him some ideas. He could think about how he could use similar things in his own plans to take over the MHA world.
Some characters might try to understand Deku's motives. Kirishima, who was close to Bakugou, would be angry at first but might also try to find out if there were any extenuating circumstances. However, many would be afraid of Deku, seeing him as a threat now that he has killed one of their own.
Some MHA characters might be flattered. For example, Midoriya would probably be really excited and take it as a sign of how much he's inspired people. He might even look for positive lessons in the fanfiction to improve himself.
If the MHA characters were to react to a Mastermind fanfiction, some would be more accepting than others. Characters like Ochaco might find it really exciting. She's a fan of the heroes herself, so seeing different takes in fanfiction would be like getting a new perspective on the MHA world. However, characters like Shoto, who are more reserved, might be a bit hesitant. He might need some time to process what he's reading. But overall, it would be a very interesting scenario as it would show how the characters view different interpretations of their world.