From Spain:
Thunders love - https://www.thunderslove.com/
Calcetines Mestizaje - https://calcetinesmestizaje.com/
Miss Calcetín - https://misscalcetin.es/
The Artic Bay - https://thearcticbay.com/
Personally, my favourites are from the two first brands, first one a bit of “luxury” socks, the other one more for everyday but veeerry good one.












Yes, artic is only cotton (sorry me head didn,t process the wool part, my bad) and regarding thunders love, I use to buy it in shops here for 15 the cheapest and 25 the most expensive ones. I had no idea that were that expensive on the web!!! I bought my last pair at 20 at a shop in Galicia last month, 80% wool.
But yes, the best one quality-price balance are Mestizaje. We have several pairs at home!