I'm always keeping an eye out for used pots and pans. It's been hit and miss. I found some good looking copper/tin items on ebay, but when I got them, I found them to be too lightweight and thin. I kept them for their look, but they're not very practical to cook with.
I just found these today:
https://www.thefoundryhomegoods.com/kitchen/cookware/ They're new, but look well built and practical. Some are stainless steel and some are cast iron, both materials that I like.
~ C