I've had trouble with polarized sunglasses in the past being a bit too dark for me and being told that only the one tint was available. I wear prescription lenses with a complex and expensive prescription, so having glasses made that didn't work out was expensive. So in the past 10 years I gave up on prescription sunglasses and just got my regular prescription glasses with Transitions lenses.
I just got glasses for the first time at Costco, and their polarized lenses are not as dark as others. They still only have one level of tint, but it is a good level for me. Also, the glasses were about half what I had been paying elsewhere, so I decided it was worth a try. I got a regular pair with Transitions, which has worked out well. And I got a pair of polarized sunglasses too, which I have really been enjoying. the brand of frame for the sunglasses was Kirkland Signature, but the frame also says Columbia on it. They look good and have worked out great.