I would check out Nomad, HardCider Labs, and Native Union. All expensive but great options.

Nomad has a base station w/ apple watch stand. It can charge two devices wirelessly and it has usb-a and usb-c outputs.

https://nomadgoods.com/collections/power-wireless-charging/products/base-station-apple-watch-mount

HardCider Labs has a slicecharge 3 and slicecharge pro that both have apple watch charging functionality. I believe only the slicecharge 3 has a usb-c output though.

https://hardciderlabs.com/collections/test/products/slicecharge-3-watch-edition

https://hardciderlabs.com/collections/test/products/slicecharge-pro

Native Union has a Drop XL which can charge two devices wirelessly as well as an apple watch. No usb-c output.

https://www.nativeunion.com/collections/wireless-charging/products/drop-xl-wireless-charger-watch-edition

Hope this helps!