I have seen Oliver and BCS mentioned. Oliver has a couple of recent reviews that are a concern but I don't think any shop would be perfect. Hard to know the whole story.
Let me know where you end up and what your experience is. I'll do the same. I intend on dropping off at Oliver Bros this week since I don't need it over the holidays
Depending on what you are looking to do, I bought a remanufactured transmission from a local Ford dealer and had Stratta Auto Repair in Bryan install it. The dealer delivered it to Stratta and it was a fairly simple process.
Asked similar question recently here on transmission repair. I havent done mine just yet since I'm unsure if I'll just be getting another vehicle but I came across A & K Transmission in Bryan - a mechanic I know just used him a week ago and is happy with the results.