Seguin is on the I-10 about 45 minutes from center of San Antonio and about 2.5 hours from center of Houston. I don't have any specific leads for you, but the place is booming here, all kinds of folks moving in. Not sure how your skill set fits into things, but some of the big employers with large structures are Toyota (Tundra trucks built here), Caterpiller, CAVCO, Continental Automotive Systems, CMC Steel, Alamo Group (builds a variety of large, industrial tractors/mowers), a power plant and there are a couple dozen smaller manufacturers, several apartment complexes, and brand new motels and hotels springing up. Oilfield related stuff going on here and in surrounding area too. The Seguin Chamber of Commerce has a listing on their website.
And lots of people moving in, so finding a house might be a chore, but on the other hand it drives more business here.
Amazingly we don't have a gun range close by, the last one I know of the guy retired a couple years ago, so business opportunity there I guess.
I live out in the sticks in the south of the county, much less inhabited there and I can shoot in the back yard.San Marcos, New Braunfels, and Luling are all close by, and have direct routes to the I-10.
Good luck!