If he is going for BBA, I would recommend University of Houston, Main Campus.  But, its freaking expensive. It is also one of the reputed college in united states for BBA. Apart from that, UH downton is good, cheap and UHCL falls in the same category. UH is freaking expensive though. For International student at Main Campus, it costs around 10K per semester unless you have some kind of Scholarships that brings you to pay in-state tuition fee. 

Let me know if you want any more information. However, you can get job easily in Houston compare to other cities once you graduate.