Take a look at BoondockersWelcome.com
It’s a membership system but you get in free as a Host.
As a host, you offer what you hace. Maybe just a place to park (boondock) or maybe you have water, 30 amp, wifi, etc to offer. Generally, no charge but you can ask for a small amount for electric. I host and don’t ask for electric money unless it’s something like running a rooftop air for 24 hrs here in AZ.
As a host you control a calendar of when you’re available, how long a guest can stay. It’s also up to you as to how much you want to interact/socialize with your guests.
Finally, as a host you can stay at BW sites as part of your free membership.
Rio Rico, AZ
2004 BT Cruiser 5210