Flat_Moon
it's pretty rare I think. There's Daddy Iron Man which is just a copy and paste of the Iron man script with a system. There's One Punch Family which is the idea of Saitama having a monster wife and monster kid. I've read two Naruto as Dad novels where he's transmigrated to DC Universe with Hinata and the other was DXD but his new wife gives Birth Asia and dies shortly after it.There are probably others but I can't think of them.