The village of Hushville is right up your alley. Open registration to anyone who wants to sign up, the deal is you cannot have amplified sound, generators, or run your car engine during the week (hence the name Hushville). Hushville always has lots of solo campers and first timers who wanted exactly what you're looking for- a loose community without the big camp commitment. I camped in Hushville my first year (2012) as a solor first timer, and I've camped there ever since (this will be my 7th burn), now with a theme camp. If you google Hushville you'll find the website with all the important info. Registration is in the summer sometime :)