Good look on the mention...
Here's who I used to listen to and still do on occasion. I willing to bet you've heard of most if not all of these guys...I didn't get too, too obscure with it, so a number of these folks below aren't spacy abstract, but most fell way below the radar nonetheless.
Continue to expand your horizons...glad you're seeking...
*Last Emperor (one of my faves, arguably, "Secret Wars" is the nerd, intergalactic, storytelling anthem)
*Louis Logic
*J-Zone (back out with new material)
*Breezly Brewin & the Juggaknots (If you don't have the classic Clear Blue Skies, you lost!)
*Company Flow (of course, torchbearers)
*Benefit
*J-Live
*Cani Ox
*Punch & Words
*Shabaam Saahdeq
*Jedi Mind Tricks
*C Rayz
*Swollen Members
*Planet Asia
...that's all I can think of off the top...Not feeling going through the CDs at the moment, but if I do and I notice someone I shoulda mentioned.... I'll be back! lol!
I used to go to ughh.com all the time to check for releases. If you wanted to cop, that's a good spot. So is Sandboxautomatic.com
...and I'm trippin'...can't leave off my NC fam... Supastition aka Kam Moye...7 Years Bad Luck is a personal classic to me.