New Braunfels is about 20 miles outside San Antonio. It was a German settlement and it retains much of the German flavor, including an annual Wurstfest. There are even still a few people for whom German is their first language, although it’s a dialect that has American influence (like Spanglish but with German). It’s a very charming place, although metro San Antonio is encroaching on it.
The La Fiesta groceries cater to the Hispanic population. I was surprised they were showing one in New Braunfels, and my quick Google doesn’t show any outside San Antonio. I suspect that scene was scripted, and their local grocery is a HEB. Most of the HEBs have curbside pickup for a nominal price ($5 I think), so I would think that the trip to the store that was shown was unnecessary.
I’m biased and think the entire state is beautiful, but absolutely come see Central and south Texas!