Most full-timers sit a spell during the winter and then in summer travel to explore or visit family and friends. They move around. We haven't run across many parks in the northern states that you might have in Texas or the Phoenix area for winter stays. Summer travelers are families on vacations. They don't stay in one place.
Have you looked into the Escapees RV Club? They have two parks in California, one in Oregon and one in Washington that have clubhouses for activities.
https://escapees.com/parking/skp-co-ops