There are several options. Some websites like Webtoons or Crunchyroll Manga could have it. Also, check your local library to see if they have physical or digital copies.
I don't know what the mic Mu Xiaolei sang about League of Legends was. However, if this was a song from League of Legends, it might have been composed by a League of Legends player or a team. You can search for information about League of Legends on the internet to see if there are other works.
The popularity of 'Present Mic adopts Izuku' fanfictions lies in the fact that it explores an uncharted territory in the My Hero Academia universe. It combines the underdog story of Izuku with the zany and positive character of Present Mic. People love seeing how Izuku can grow and develop under Present Mic's care. It also allows for some creative storytelling as it can involve Present Mic using his voice - related quirk in new and unexpected ways to help Izuku. Additionally, it gives a chance to show a more nurturing side of Present Mic which is not often explored in the original series.
Well, there's a fanfiction called 'Mic's Adoption Adventure'. In it, Present Mic stumbles upon Izuku being bullied for being quirkless. Feeling a sense of protectiveness, he adopts Izuku. This fanfic delves into how Izuku starts to gain confidence with Present Mic's constant encouragement. And then there's 'Izuku and His New Dad, Present Mic' which is really interesting as it shows the daily life of them together. Present Mic uses his unique teaching methods to help Izuku not only in hero training but also in academics.
I'm not entirely sure specifically which 'abc hot mic epstein story' you are referring to. There could be many stories related to the Epstein case. It might be about some revelations or comments made on a hot mic by ABC regarding the Epstein scandal, which involved sex trafficking and other serious crimes.
Some fanfictions also have a mentorship theme. Since Allmight is a very experienced hero, he could potentially be a mentor to Present Mic in certain aspects. This could involve training, or guiding him in making important decisions. And of course, there are some fics that explore a more romantic relationship between them, though this might not be as common as the other themes.