We have been in Las Vegas, NV., Farmington, NM, Hanksville, UT & now Niland, CA.
Never too early to start throwing out ideas. One concern is fuel which is cheapest in EARLY SPRING or LATE FALL.
I will start with a few,
Coral Pink Sand Dunes State Park, UT & North Rim, AZ
Moab, UT
My House in Southern AZ south of Tucson
Rocky Point, SON, MX (Arizona's Beach, Just 1 1/2 hrs across the border and YES it is safe)
Just brainstorming at this point.
rocmoc n AZ/Mexico