DeGray Lake is a beautiful park in very scenic area, large sites, lots of trees. Half an hour to Hot Springs. Hour to Crater of Diamonds State Park. Cons: 30 amp electric, no sewer, difficult to get satellite.
Aux Arc: On Arkansas River, 50 amp, water. Most sites on river, some with steep bank. Cons no sewer, some sites difficult to get satellite, some train noise. 45 minutes to Fort Smith. RR Museum, trolley, lots of history.
Another option in Arkansas is one of our favorites - Lake Catherine State Park in Hot Springs. Some sites right on the lake with easy lake access. Lots of shade. They have some 50 amp full hookup sites.