The_Degenerate_One
The only thing is that this world doesn't have many good girls. Only Nobita's mother, Shizuka and her mother and that would be it. The only exceptions are the other characters on the movies but those are just not permanent people . I would suggest adding the option to travel the multiverse so he can at least have the opportunity to get more waifus. Good worlds would be : Totally spies, Martyn mystery, Ben 10, generator rex , American dad, Family guy, The simpsons , Rick and Morty, Kim possible, The incredibles, etc :D