If you plan to move every so often, and stay for a few days or a couple of weeks, you might consider joining the Elks. Many of their lodges have facilities, some have off-site RV Parks like the ones in Florence, Oregon, and Loncoln City, Oregon. Some have full hookup such as Chula Vista, Ca with water, electric, sewer, cable and free WiFi. The lodges with the best facilities seem to be on or near the west coast.
Also, many have good food, all you can eat fish and chips, spaghetti and the like dinner nights.
Always lots of friendly people, many full timing like yourselves.
And.......don't forget courtesy parking provided by other Airstreamers when you are on the road.