Texas RV Parks...now that's a tall order. Here are a few I've stayed at.
Sea Breeze: In Portland, Texas next to Corpus Christi right on a private fishing bay. Nice clean facilities, laundry, iffy Wifi but good when it's good, pool and spa, activities during the busier winter season, exercise room. I always ask for the pull thrus across from the Bay.
Hidden Valley RV: In Von Ormy, TX, minutes to downtown San Antonio and the Alamo and Riverwalk. Wifi, country atmosphere, private fishing creek, laundry, very helpful staff with lots of touring hints, day long bus tour from park to San Antonio attractions. On a decent, 1/2 mi gravel entrance road.
Any of the State Parks: been to many and they are all fantastic.