@William Brock I have these conversations pretty often and it really comes down to how much a specific property can gross which is impacted by the area/property itself, the actual experience offered, how you market. At a glance, I dont see those areas you mention hitting the kind of gross a true vacation market can yield (yes, that includes Galveston - which is doing really well for the new school Airbnb world CC: @Timothy Church) . Doesnt mean it cant be profitable but the raw strength of the area is pretty spread out which is risky in a way but can also be successful (if you stand out, you may be one of the best choices around).
AirDNA is solely AirBNB data and it's fine with some built in margin of error. Some markets have significant presence with Homeaway/VRBO and I want to say those areas you mention are some of them. Evolve is hit or miss based on your market/local reps but expect 10-20% off gross to pay them. If you can build your own systems (many threads on here just search "STR") you will pocket it instead. You should definitely talk to them as well as our hometown shop, TurnkeyVR.
Getting comfortable running numbers in a VR sense and talking to others (such as myself) would be a good way to get more context to get started. Happy to get a beer!