You can see how many villagers you'll need to interest K.K Slider by Animal Crossing Items checking in using Isabelle in the counter in Resident Services. Ask her about the'island evaluation' and she'll list the ways you need to improve your island to get that three-star rating all. Then you want to keep on bringing residents to the staircase, if Isabelle informs you that opinions is limited. 

Take the tent Nook provides you to a suitable area once you've handed over the cash, place it up and wait for the house to be offered. You may also be able to find villagers on the game's procedurally generated islands should you utilize Nook Miles Tickets to cheap Animal Crossing Bells get to them, however it is not certain that prospective citizens will be there along with the other approaches can be more successful.