I second the bridgedale ones. (highfive) so warm and comfortable
He does keep posting pictures of the ends of rainbows
I always go for Damart thermo stuff - just an example here. https://www.damart.co.uk/F-10018-socks--w/P-386591-pack-of-2-thermolactyl-calf_length-socks
I think I would be looking for; 1 cushioned soles 2 longer socks rather than short ones 3 merino wool content. These look okay, but you might do better on other websites like Great Outdoors that someone mentioned; https://www.mandmdirect.com/01/details/QW30094/Trespass-Mens-Stroller-Merino-Wool-Trekking-Socks-Black-Marl
These any good?