There are multiple Thai tailors that fly around to major US cities. They'll take your measurements, and then sit down and design a bunch of custom clothes for you.
Quality is amazing, fit is incredible, and the price is only 20-30% more than off the rack, but the clothes can last a decade+.
Sometimes the ancient solution (meet another person with a measuring tape) is the best one.
You can also get a local tailor to take your measurements and then order direct from tailors in Thailand or Singapore, and it tends to be cheaper than off the rack.
It has been a long time since I used the services, the shirts I got a decade ago are still good, but it was like $130 for a really nice shirt where I got to customize everything including the stitching and the buttons.
I have one shirt where each button hole has contrast stitching around it, an absolute baller of a shirt.
Even if they cost me $200 today it'd be worth it. They last so long and being able to define your exact own personal style feels great.
For dress clothes at least, Maxwell's is great. I have some of their shirts and a jacket and they all fit and feel great. They do tours and measure you in a hotel conference room:
Quality is amazing, fit is incredible, and the price is only 20-30% more than off the rack, but the clothes can last a decade+.
Sometimes the ancient solution (meet another person with a measuring tape) is the best one.