There's also 'Overpowered Izuku: The New Symbol of Peace'. Here, Izuku's power not only includes enhanced physical strength but also the ability to manipulate energy in ways that are not part of the original quirk. This makes him so overpowered that he quickly rises to the top as the most powerful hero in the fanfic's world. He can even fly and teleport, which are abilities not seen in the normal My Hero Academia universe.
Another one is 'Izuku's Ascent to Overpoweredness'. In this fanfiction, Izuku has a unique connection to the One for All predecessors that gives him access to their knowledge and skills on a much deeper level. This results in him being able to use his power in extremely creative ways, like combining multiple quirks at once, which makes him overpowered compared to his canon counterpart. He can also heal himself instantly, which is a huge advantage in battles.
One popular overpowered Izuku fanfiction is 'One for All: Unlimited'. In this, Izuku has an extreme version of One for All that gives him near - godlike powers right from the start. He's able to take on villains with ease that would normally be a huge threat in the canon story.
Some fanfictions make Izuku overpowered by enhancing the nature of One for All itself. Maybe it gives him unlimited stamina or the ability to share his power with others in a much more efficient way. This changes the power dynamic and makes him far more powerful than in the original story. He could then train a group of heroes to have similar levels of power, making him a key figure in a new kind of hero society.
In many fanfictions, Izuku and the Hero Killer have a complex relationship. Sometimes, Izuku might be portrayed as trying to understand the Hero Killer's motives, which are often misconstrued but rooted in a desire for 'true' heroism. This can lead to some really interesting character development for Izuku as he grapples with his own ideas of heroism in the face of such a radical view.
In some overpowered fanfiction, a character could have the ability to instantly copy and enhance any quirk they come across. So if they see someone with a strength - based quirk, they can not only copy it but make it much stronger. This would lead to some epic battles and power - growth storylines.
A frequent theme is his relationship with All Might. In some fanfictions, he might feel that he has let All Might down. All Might's high expectations of him could weigh heavily on Izuku, making him feel like he can't live up to them. This could lead to a downward spiral of depression. Also, the theme of hero society's pressure on him is common. The expectation to always be strong and save others can be overwhelming, and in these fanfictions, Izuku might crack under that pressure.
One common theme is Izuku's power growth. In many of these fanfictions, he becomes even more powerful and badass in unique ways compared to the original story. Another theme is his relationships, like his friendships or rivalries. For example, his relationship with Bakugo might be explored differently, showing how his badass side affects it.
One popular trope is the 'Quirkless Hero' where a character without a quirk manages to become a hero through sheer determination and intelligence. Another is 'Villain Redemption', where a villain decides to change their ways. 'Time Travel' is also quite common, with characters going back in time to fix things in the My Hero Academia universe.
One reason is the representation. In the original My Hero Academia, there's not much exploration of transgender characters. So these fanfictions fill that gap and give fans a chance to see a different side of Izuku. It also allows for more diverse storylines that can be really engaging.
They may depict him having internal monologues full of self - loathing. For instance, he could constantly think that he's a failure or that everyone would be better off without him. His eating habits might change too. He could either lose his appetite and start skipping meals, or overeat as a form of comfort. In battle, his performance might decline as he lacks the usual drive and confidence, and is more likely to make mistakes.
In the 'My Hero Academia Godlike Izuku Fanfiction', Izuku might be special because the author gives him extraordinary intelligence. He could use this intelligence to analyze his opponents' weaknesses much faster and more accurately than in the original story. Also, his leadership skills could be off the charts. He might be able to inspire his classmates and other heroes in a way that no one else can, leading them to victory in battles that would otherwise be lost. This combination of intelligence and leadership, along with his already powerful quirk, could be what makes him godlike.
One common emotional moment is when Izuku is physically injured during a battle. In some fanfictions, he might be seriously hurt while protecting his friends. This shows his selfless nature and makes readers feel for his pain.