Just get some size small N1B welco military extreme cold weather mukluks with an extra wool felt insole and a good wool liner. They’re cheap … even after buying liners and doubling up on insoles… and they’re warmer and lighter than any expensive commercial cold weather boot I’ve ever owned even in -20…. as long as they aren’t soaking wet they will insulate… but tbh if it’s warm enough for any liquid water around then you are fine with a size too large rubber boot and 2 pairs wool socks…. Honest to god all I do is work outside at home whenever I’m not at work in upper peninsula type weather… and those kamiks, although stylish, will probably be colder than my oversized rubber boot solution (which I use rubber logging boots for when the weather is between 40f and 25f, or anytime slush mud etc)

The trick is to insulate the bottom of your foot from the cold ground and then keep them dry enough for the air inside/ wool to do it’s job insulating… below 20 or whenever the stuff outside you actually want the boot to perform in is going to stay frozen then you want the entire boot to breathe somewhat because then the only enemy is moisture in the lining which usually only comes from perspiration

Not,trying to be pushy bc I know this isn’t really answering your recommendation question but I figured a set of criteria or reasons for why something could be good is better than a simple recommendation … and I’ve just been over this myself for a few winters in the past and disappointed so much trying different expensive supposedly bifl (as recommended by various ppl or internet) boots and most turn out to be a joke when it comes to real world performance, so it basically comes down to having a set of muck/mud boots for the wet cold, and mukluks for the extreme frozen cold… and honestly the military mukluks are actually (imo) kind of stylish in their own odd way…. I’m a dude tho. But none of my exes have regretted getting a pair. Plus it’s hilarious when people say something about them and youre laughing all the way to the perfectly warm dry feet bank and they have the white cold prune toes. At a certain point… function over form.