Before moving to Germany 4 years ago, I used, almost exclusively, H&H Color Lab. At the time, they were only open to working professionals with a tax license, tax id # etc. Not sure about now. I also tried, and liked the results from, White House Custom Color (WHCC) and from M-Pix which is the consumer branch of Miller's Professional Imaging.
There are probably others out there. Have you asked any for sample prints? I would imagine that most high quality labs would print one of your images for you to examine. That is what I did about 10 years ago, I sent the same file to several and took into consideration shipping time, packaging, as well as print quality. H&H was my choice and I was never disappointed. I had colleagues that used Miller's exclusively and a few that used A&I exclusively.
I am sure that others can give more recommendations.