Depending how far you want to travel, I've stayed at two along there I would recommend.
Sunrise RV Park just east of Texarkana is a good stopover.
Delta Ridge is a small park just off I30 in the town of Forrest City, which is between Memphis and Little Rock. It's nothing special but a decent stopover. There is a good restaurant within walking distance of the park in Forrest City and a Denny's very close to the Sunrise RV Park.