Where can I buy a Ryzen box?

[Pierre Abbat]

I'm thinking of getting some new computers in a few months:
* A System 76 Leopard, with lots of cores and GPU, but not Ryzen
* A Ryzen box, with GPU for computation, running DragonFly
* A few lesser boxes with other OSes.
I doubt that anyone sells Ryzen boxes preloaded with DragonFly, so I'm trying 
to find a Ryzen box without an operating system. But googling "ryzen no 
operating system" brings up computers that have Ryzen and an operating system, 
but no something else. Where do you suggest I look?

Pierre
-- 
Jews use a lunisolar calendar; Muslims use a solely lunar calendar.