Not sure if I misunderstood that you're looking for something that wouldn't be a replica of something done before, but also wouldn't be something that's "not even really PE". This easily becomes a search for something that would be somehow new if not revolutionary but would also still feel and sound like the old thing you already like. It is easy to set up your search towards failure. What you find will very likely end up sounding either too similar or too different from what's been done before, stuff made in the times when the "before" didn't really exist.
This thing has been discussed a few times here regarding power electronics, black metal, harsh noise etc etc. People want a new thing that makes an immediate impact that'd be on par with how they feel about some project(s) they've been into or plain worshipping for years if not decades.
As of fairly new names, at least Awenydd, Nostoväki, Commando 15, Nuori Veri, COV OPS, Truth Commission, Vigilantism and Apex Parasite come to mind. Kurluk's newer tape too, and Shitnoose's debut CD, if those are not too close to harsh noise or non-PE for your preference. Soma as well, for example on his Age Of Strife tape or split with Tube Tentacles. Or how about Himukalt? Not sure if you regard them as new enough though.
It is also good to remember that a lof of underground projects (be it labels, distros, zines, bands) have been started due to wanting or NEEDING something to exist that just isn't there, so you've had to make it yourself. I'm pretty sure that was a big reason for this forum to be made for example. If you're looking for a certain type of power electronics, it might be you'll find it the easiest by making it yourself.
Same goes for spreading the news about noteworthy noise/PE. People might not know if nobody tells them. There are lists of names, but less descriptions of exactly why these specific projects or releases are worth checking out.