Rene Herse Double Cranks (5 to 9-speed)
https://www.renehersecycles.com/shop/components/cranks/rh-double-crank
9-12 Speed Double Cranks
https://www.renehersecycles.com/shop/components/cranks/rh-11-speed-double-cranks
The cranks are designed to be 100% compatible with STI (except 12-speed mtb), Ergopower (all versions) and SRAM (all versions). They work equally well with 9- and 10-speed drivetrains, and also with downtube or bar-end shifters. $495
46/30; 44/28; 42/26
With Shimano GRX
10 Speed (400) = 11/36
44/28 = 20.7 to 106 gear inches
42/26 = 19-101
11 Speed (600) = 11/34 X