I say "good guy" in almost sarcastically because of the antics of the parent Cyanogen company, specifically that Kirt guy.
Anyhow, the folks at Google have let out the Android 6.0 images for the Nexus devices, and for the most part, most of the Nexus devices should have their update already.
We're still officially waiting for OEMs to catch up (tho' some specific regions have seen updates), and it should be soon...
To show up the OEMs Cyanogenmod has just come out with their latest nightlies CM13 which are now based on on Android 6.0 for a few devices (but it's growing):
Smasung Glaaxy Tab Pro 8.4
LG GPad 7
Motorola Moto X (2014)
The main rule in CM has always been, 'don't ask about ETAs', which has worked in the past, but it seems this update has been a fair bit longer. Which is understandable as the company has moved itself into the realm of legitimacy and has grown in its complexity (almost like the OEMs themselves); as such it has taken a bit longer.
But, they've still beat out any of the OEMs.
Here's their notes for those who are thinking of flashing the nightly
Source: Cyanogenmod via AndroidCentre