I have watched a ton of hands-on previews for both the Canon EOS 90D and Canon EOS M6 Mark II, and instead of posting them all, I’ll just post my favourite one and as it happens a lot recently, Jared Polin (FroKnowsPhoto) does a great one and I agree with a lot of what he says about both cameras.
The Canon EOS M6 Mark II is quite a compelling package, while the Canon EOS 90D seems to only have advantages in buffer performance and ergonomics.
Jared also provides RAW files that you can open in Lightroom for the Canon EOS 90D and Canon EOS M6 Mark II here.
Preorder the Canon EOS 90D and the Canon EOS M6 Mark II:
Canon EOS 90D Body $1199
Canon EOS 90D w/18-55mm IS STM $1349
Canon EOS 90D w/18-135mm IS STM $1599
Canon EOS M6 Mark II Body $849...