Winter glove recommendations, suggestions

I have a really hard time with cold hands. Was out Sunday for 2.5 hours on the road in the rain and 0C, got home with numb hands again, can’t be good long term. I’ve tried wool gloves inside lobster outergloves, helps, but really just delays things. I finally said screw it, and ordered a set of Rockbros bar mitts yesterday. If the bar mitts work half as good as I’ve read, then that should be the solution for me. Reeeaally looking forward to trying them out. The rest of me is fine, I stay toasty warm, but my hands absolutely kill me.