I delved into window tinting last year and got quotes from all the local providers I could find in Bryan/College Station. Most recommended Ag Solar.
For my Tesla 3, which has a lot of glass, Ag Solar's quote was $2,000 for a brand of tint that is good, but not great (Llumar IRX). I ended up driving to Houston to get what most considered the best brand of tint at the time, Xpel Prime Plus, for $925. The only place I found in town that offered Xpel was
https://www.glopremierautospa.com/, but they quoted $1,396 and planned to use two pieces for the large back glass instead of one full piece like I ultimately got. They didn't have the equipment to do a one-piece installation.
I went to
https://www.gcautoshield.com/ in southwest Houston, which is highly regarded on many car forums. The TexAgs Auto board's Houston recommendation (Fabian) used a brand of tint I didn't want, but I don't remember which one it was.