I’m a huge panopticon fan. I got one of their CDs from a local radical book shop the other day.
I’ve not heard of the other three, I’ll check em out!
Edit: I’ve listened to a song by all three, and I really dig Cauldron and Warmoon Lord. I can definitely see cauldron go in my catalogue for when I need to mix things up, they’re outside my normal go-to genres.
To throw two more back at you, check out Dawn Ray’d, an excellent melodic black metal/RABM band with some great lyrics, themes, and some solid songwriting. The band’s politics are similar to Panopticon, or Woe.
Others by No One, a prog metal concept album I can’t exactly describe. To me, it feels like the only band that has carried Native Construct’s torch, which is one of the best compliments I can give. It’s an enthralling listen.