I rely on diabetic socks. Very comfortable, no restrictions like regular socks. Orthofeet.com is my go to source for footwear.
I used support socks for a time before my liver transplant, as I was accumulating a lot of fluid in my legs and feet. I even purchased one of those frames to stretch out the socks on before I put them on. It made it a lot easier to get my tree trunk legs and feet into them.