I am pretty much alone. I have two adult children and we sometimes reach out to each other but don't get to see each other enough due to distance and general life stuff/pandemic. I stopped working last year, still getting offers but I really must be done because I would only be tempted by something really special/of interest. I have two old friends, women I've known "forever", about the same as with the kids. My parents & brother are dead now. I never really knew any of my cousins or extended family(big secrets, we were kept apart). I think my ex would let me in if there was a natural disaster or war... I am working at embracing solitude. ---and I have PC--- but I have lost work as a support and I've lost a walkable community after having to sell my house.
My neighbors would respond to any emergency because they are good people.
I have one friend I would be able to call in a psych emergency who would be able to settle me down. (whew...)