I’m the same with Merino, only use it for nice snuggliness in cold camps/bothies, just don’t find it good enough for highly active work.
My favourite baselayers are old Patagonia Capilene tops and bottoms which I was lucky enough to buy as ex-samples at bugger all price. Ten years later and they’re still wicking well, keeping the heat when needed, and non-smelly. Sadly they don’t use the same fabric now, but I would imagine they’re still really really good. But expensive!
My next favourites are Alpkit Laika. Nice and warm, and very hardwearing, though they don’t wick quite as quickly as the Patagucci, and take a bit longer to dry. Cut and fit is excellent, especially the arms.
I have numerous Decathlon wicking T’s, all excellent value, and one long sleeve one which is good for really active stuff but not as warm as the others.
I had an Odlo top, don’t know where its gone, but it was good.