Here is an in-depth Canon EOS 90D review with comparison against the EOS 80D, 7D Mark II and M6 Mark II.

Equipped with an enhanced 32.5MP APS-C CMOS sensor, powerful DIGIC 8 image processor and an ISO range of 100-25000 (expandable to 51200), the Canon EOS 90D DSLR camera (Amazon, B&H, Adorama) can delieve super sharp, detailed images and fast operation, even in low light.
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Read full post here:
https://www.dailycameranews.com/2019/10/canon-eos-90d-review-comparison-vs-80d-vs-7d-ii-vs-m6-ii/