I only read the first page of responses before posting. But I grew up in Texas (from age 2-22), and a lot of my family still lives there (and we are slightly considering moving back). As many other have said, Texas is extremely diverse and is very different in different areas! Though no matter where you live, Texans are always proud be be Texans though.
Personally, I’m partial to the Hill Country area, which is central Texas, kind of north of San Antonio and west of Austin. There’s actually some really pretty areas in the Hill Country. It still get hot in the summer though! Maybe not as humid as Houston, but still a little humid. You do have to be prepared for the heat.
If you’re looking for more conservative areas, I’d avoid Austin. No offense to Austin AT ALL, and I have really close, and conservative, cousins that grew up in Austin, but Austin itself is probably the most liberal area of the state. Living in L.A. now, whenever I tell people I grew up in Texas, they always tell me that they’ve heard good things about Austin, or that they’d like to visit Austin. I always laugh and tell them, “yeah, that’s cause Austin is like a mini-Los Angeles!” and I encourage them to expand their horizons some and try out other cities as well.
San Antonio is great, and has a sense of cultural heritage. It is VERY Hispanic though, so as another poster mentioned, if you’re non-Hispanic, you’ll have to get used to being in the minority. I did not grow up Catholic, but I know that there’s a big Catholic presence in San Antonio, mostly Hispanic Catholic, but Catholic still.
There’s also a lot of really great small towns in Texas too, if you like small town life!