TL/DR: Where do you move after a divorce if you want social and emotional support?

I’m planning a divorce, or at least a legal and physical separation, in order to get out of an emotionally abusive relationship. We’ve agreed to sell our house, but my wife wants to keep living with me afterwards “temporarily,” so she can figure out what to do next (her words)—but also, she let slip, because she thinks it will lower the chance that I’ll actually file the papers (which I haven’t done yet).

I want to move to a different city to get away from her and because I don’t like it here, but I can’t decide where. I want to be somewhere where I can have some support. Our grown children live in different states; I could go live in one of those cities, but I’m pretty sure she’d follow me so that she could be near that child too, and then I couldn’t get support from that child.

I have only a couple of close friends; they both live in an entirely different state, but I can’t afford to live near them (southern CA).

I don’t have anyone else, friends or family. I could just pick some random place based on the weather and the cost of living, but as I’m 60 the thought of being alone in a new place for the last part of my life is pretty discouraging.

How do people do this?