Apple iMac 5K 27-inch (Mid 2019) 3.6GHz i9 128GB RAM 512GB SSD - Buy Refurbished iMac 2019 at Techable
Apple 27" iMac Pro with Retina 5K Display Z14B-14C-256-2TB-64X
New Apple 2019 iMacs vs. 2017 iMacs: Is Core i9 worth the upgrade? - CNET
Amazon.com: Satechi Aluminum Type-C Clamp Hub Pro with USB-C Data Port, USB-A 3.0 Data, Micro/SD Card Reader - Compatible with 2020/2019/2017 iMac & iMac Pro, Does Not Fit 2021 iMac (Silver) :
2019 iMac versus iMac Pro is not an easy choice - 9to5Mac
Another Industry First for OWC Memory - Maxing Out the iMac Pro
2019 iMac review: The best of a bygone era – Six Colors
Don't Weep For The Discontinued iMac Pro. It Was Always A Stopgap.