I have lots of socks, and lots of cute patterned socks, but always seem to default to black socks. H has all white socks, mostly one kind. But I hate when he buys news ones and doesn’t throw all of the old away. It makes folding them a pain.
As far as exercise socks, I’m no help. I always buy cheap from Walmart, and they tend to last me 5-8 years of almost daily running/working out.