There is only one species in East Texas and that's Easterns. There are so few birds in the Eastern half of the state I doubt you'll find an outfitter, they would starve if they depended on calling up birds here.
You will have to go out west if you want a good chance at a bird. There is almost no public land here,
And what few birds there are in east Texas are usually on private land.
You might get lucky and find an outfitter, but I have never heard of one.
Roy