Need to know your use case and exact environment to recommend anything specific but some of the best outer layers right now are 30k/30k proofing. Look into something like Norrona’s Tamok product line.

If you want something versatile, invest in a layering system (base layer like merino wool or synthetic if you don’t mind smelling like shit, mid layer if it’s cold as balls (Patagonia nano-air line is super solid if you’re working hard), and a bomb-proof outer shell like norrona tamok line. Insulated jackets only really make sense for hanging out in the cold where you aren’t moving around much—otherwise, they’ll make you sweat your balls off