I have 8 villagers in my town and then I TT forward until I get a 9th move in. After that, I TT 3 days and then talk to someone in a house until they refuse to have a conversation with me. During this conversation they should say that someone wants to move. If not, I TT one day at a time and repeat until they do. Once they tell me who is moving, I walk in front of the villager and they will ping to move. If they don't, it's because I haven't talked to them in a long time, so I talk to them and then save and quit. Load up the game, and they will ping when you walk in front of them. TT to the move date, and then repeat the process over.