I don't have a specific brand I would recommend, other than the Darn Tough which you already figured out
I have some tops and bottoms from REI that are good quality, and I would have to go look at the rest to see
I know I have been burned a couple of times by not reading the fine print and getting saddled with clothing that ended up being a Merino "blend" with as little as 5-10% wool and the rest is synthetic
I returned those immediately and learned to look closer
I dod have some blended stuff with like 50% wool and I feel that is a blend worth having, assuming it is a quality garment in the first place