There are a few in Fort Worth that have good reps based on social media feedback from local cyclists.

One is Ron at Benbrook Bicycles just south of Fort Worth. Ron is closing up his storefront but he may still be available for bike fitting consultations. He has the fitting cycle, software, and good feedback from satisfied customers. I've met Ron once at his shop and chattered briefly, and even tho' I'm just riding a one-size-fits most comfort hybrid he was still willing to discuss fitting basics for a road bike I had in mind, and showed me some of the considerations via his software. I'd been away from road biking for 30 years, and frames have changed so I learned quite a bit from a short visit.

Also, Colonel's Bicycles on Foch Street does fittings, and seems to have a good rep.

Ditto Mellow Johnny's on the Trinity trailhead just SW of downtown Fort Worth -- you can actually ride your bike to the shop along the trail.

And I've heard good reports about Bicycles Inc on Granbury Road in Fort Worth.