All fanless CPU coolers including SilverStone's HE02, Nofan's hard to find CR-95C and Arctic's Alpine 12 Passive are available in various builds from
Fully Silent PCs, a one-person company run by our friend Matthew Foster. Most case brands are also available including Akasa, Streacom, HDPLEX, MonsterLabo, ZeroRPM and Turemetal. This one-of-a-kind site deserves visibility (not sponsored, not affiliated).