I evaluated white balance and tint for the Canon EOS R using a SpyderCHECKER® color checker card to evaluate the appropriate white balance and tint in the Adobe Camera Raw 188.8.131.52 dialog in Photoshop CC 2019 20.0.0.
The Canon EOS R has a strange white balance compared to other cameras I’ve used as of late 2018. The settings on the following page might save you some grief:
An about $127 DataColor SpyderCHECKER was used for this evaluation. I use the clamshell version so I can safely carry it without damaging it. I do not use the calibration software as I have not been satisfied with the results versus the stock Adobe profiles.