Here is a list of all the cameras that are supported by Adobe Camera Raw:
I'm not familiar enough with camera models to pick out the ones that might be mirrorless. You are probably aware that there is a Camera Raw 8.6 available for Photoshop CS6. It will support all of the listed cameras. However, any new features that have been added to Camera Raw 8.x will not be available. Those new features are only available in Photoshop CC.
Thanks a bunch, lazy here, yes I updated to ACR 8.6 and was too lazy to look, I noticed that the camera I was looking for, Samsung NX 300 was included! Thanks again!