We prefer open land camping on BLM and forestry land. There are no services, tables or bathrooms. Pack it in, pack it out. Free camping but we mostly enjoy the peace and quiet compared to regular campgrounds. Most truck campers are self contained and you can go a few days without needing services.
You can find locations easily with a number of websites. Our go to's are free campsites.net, compendium and all stays.
When we stay at pay campgrounds we like National, State and county parks typically avoiding "rv resorts" and the like where spots are small and rv's are lined up in rows like a glorified parking lot but to each their own. :)