All of them are Izuku Yagi....but all of them are different and it will be specified. All have different ships. Below are different types of IY stories.
Type 1 - Same Old.
Type 2 - Izuku becomes a villain.
Type 3 - Gets betrayed.
Type 4 - Gets betrayed but it's a test.
Type 5 - Class 1-A is childhood 'friends'.
Type 6 - Union Academy.
Here are the stories.
Gogeta Midoriya - Type 3 - IzuMina
Deku Black - Type 2 - IzuToga
Vegito Midoriya - Type 1 - IzuKendo
Vegeta Midoriya - Type 6 - IzuNejire
Goku Midoriya - Type 4 - IzuMomo
Broly Midoriya - Type 5 - IzuMei