Consider NW Florida. Sometimes referred to as the “Redneck Riviera”, it’s a haven for snow birds and hosts a large retired population, mostly military. There are opportunities for volunteering and seasonal jobs in the service industry, both enabling you to meet new people on a regular basis. Number 1 source of income in Fort Walton Beach, FL area: Eglin Air Force Base / Hurlburt Field; Number 2 source of income: tourism.
Niceville is nice.
Between I-10 and the Alabama state line is referred to as “Lower Alabama”.
If you need someplace with a view, consider Lakewood, FL which is near Britton Hill, the highest point in FL.
To all of you who kindly offered suggestions to me, thank you!
I am going to do a lot of research this weekend, thanks to your recommendations. It makes me feel hopeful.