Yes, there are. However, their availability might vary depending on your location and the specific comic publishers. Sometimes, limited editions or special releases of All Might comics can be harder to come by.
In the 'izuku stronger than all might fanfiction', Izuku can be stronger for several reasons. Fanfiction writers often take creative liberties. They may write that Izuku has a deeper understanding of his quirk, One For All, compared to All Might. He could also have additional abilities or support from other characters that contribute to his increased strength. Maybe he has formed alliances with powerful individuals who help him train and unlock new levels of power, enabling him to surpass All Might.
In these fanfictions, Izuku could be stronger because of his strategic thinking. He might analyze battles more carefully than All Might and use his quirk in more creative ways. Also, his experiences could be different from All Might's, leading to a different kind of strength. For instance, he may have faced tougher challenges at an earlier stage which forced him to adapt and become stronger more quickly.
In the fanfiction, Izuku may start to undermine All Might's actions. He could try to expose any flaws or wrongdoings of All Might. Their relationship goes from one of idolization and guidance to one of opposition. Izuku no longer looks up to All Might and may even try to bring him down. For example, he could spread rumors or try to find evidence against All Might if the story goes in that direction.
It adds a new dimension to the fandom. By focusing on a little girl's relationship with All Might, it can attract a wider range of fans, including those who like stories with a more emotional and nurturing aspect. It can also inspire fanart and other fan creations related to this unique relationship.