KMAC2 can be PCB mount
Also GH60 I believe.
Many of the customs can be PCB mount.
Sprit, most likely Duck's lightsaver as well. etc.
I would recommend a G80, though their case construction isn't as sturdy as some, it's usually good enough for a keyboard.
For non cherry MX switches,
There are also some hall effect keyboards and reed switch keyboards that are PCB mounted.