How do you choose your villagers? I have two moving in but no plots yet

I just found out that I could invite other villagers to come live in my island while traveling with miles tickets (I'm trying to not look up things online and let them happen as I play) and I end up inviting the first two, Alfonso and Skies to come live with me. Then I wonder if I should choose them or just invite randomly and how do you guys do it?

Also coincidentally I went back after and when talking to Nook finally got a bridge kit and then 3 new plots but I'm wondering how did I get two new villagers to say yes to moving in before I had these plots (I haven't set them up yet)

thanks guys!