I noticed that as well. Ryzen systems are few and far between currently, might change when the next round of APUs are released, but for now there are a few out there if you look hard enough.
I actually just bought a new laptop for some basic productivity and light CAD work, and I'm very happy with it so far. It is a HP Envy x360 with the Ryzen 2500U, 256Gb NvME drive, 8 Gb RAM, 15.6" Full HD touchscreen. It's a 2-in-1, and the deal I got came with the HP pen stylus, got the whole thing on sale for $600 (usually runs about $800 I think). One of the reasons I chose it was that it had some upgrade options - first thing I did when I received it was pop that bad boy open and throw a 2.5" 512 Gb SSD in the open drive bay to work as my data drive, and replaced the 8Gb of RAM with 16 Gb.
It's a zippy little rig so far, runs Autodesk Inventor well, and even handles some light gaming decently - this Ryzen APU runs circles around the i5 2-in-1 laptop I had previously (which I gifted to my wife). Hopefully it'll stay zippy - time will tell.