If Texas is anything like Georgia... you aren't going to find what you are looking for...
Around here... a truckload of "topsoil" tends to be damp sand.
We have to make our own topsoil... I like manure and wood chips...
If you need it delivered, maybe you could search mushroom compost.
It's often possible to get your mulch delivered free!
http://www.stonethegardener.co...