We're heading here
https://caseysrvpark.com/ next weekend for a couple nights. It's about 100 miles from my house. We have a site at the end of a row and no one on our door side.
They also have a disclaimer you have to check when booking stating that no more than 5 people in a group and social distancing guidelines must be adhered too. We don't socialize anyway so we'll have way less contact than going to Safeways or Home Depot. We have a couple other RV parks we'll be heading to after Memorial Day weekend.