One of the best places to get work-for-site is at a State Park. This year we went to Wind Creek State Park in Alabama, http://www.alapark.com/wind-creek-state-park.
Full size sites, the premium sites have concrete pads, 50 amp electrical, water and sewer, the rest are gravel, 30 amp and water only. The park has a healthy environment, lots of fishing, a unique silo with a look out rooftop, paddle boat rentals and a zip line!
A goodly amount of rest and relaxation with plenty of kiddie activities. Oh, find the full sized Foosball arena and grab some friends, it is hilarious.
LiveCampWORX at rest.., too.