Hey
Houston is more suited for homeownership and long term living than it is for vacationing. However there are a few things that allow for plenty of visitation. It is pretty saturated here but theres still opportunity. Also with the rule that some eastern cities passed, where clients must book for at least a month at a time, it definitely helps cities like Houston. Coming from a person who owns LTRs and STRs, there are few things you be aware of when attempting to do STRs in Houston.
1. Houston is well known for its medical center and many nurses and medical professionals come here for work. Focusing on STRs near the medical center will allow you to stay booked more often from people in the medical industry and patients as well
2. Anywhere close to bars, restaurants or any attractions is an obvious one. So Midtown, Hieghts, Montrose, and if you can find one downtown just to name a few, you shouldnt have any problems getting bookings
3. Of course any where near water is great. Galveston, Kemah, Lake Houston, Lake Conroe could be good choices to look for STRs properties.
In summary, if you find any properties in the above catagories at a good price then go for it but if not i would reframe from making it an STR and just go for the multi- unit LTR strategy.