I have been using Knit-Rite
I have been using Knit-Rite compression socks since 2015 and I just love them.
But last year I tried 3-4 pairs and noticed they got much longer, Customer Service advised nothing changed but it did, I saw the difference. They were X-Large Reg. 15-20m. I was always refunded.
I just recently tried other brands but none were good or what I liked so I tried X-Large Short 15-20 and those work, so I guess that is my go to now. They are a bit short for me but I seem to have no choice.