I always loved SF's Private School. Their minimalist sound is somewhat miraculous to me. They're like 180 degrees from the current hype type rap and thank god, they couldn't care less and keep on developping their quiet, soft spoken style years after years.
If you're not familiar with their previous albums and enjoy their new free EP Penrose like I did, please check them you'll be rewarded. They got plenty of solo and side projects as well.
Long live the Private School.