I switched to vertical typing. It was a challenge at first, but now I can type almost as well vertically as I can on a normal horizontal keyboard with significantly less pain in my arms and shoulders.

I already owned a Moonlander keyboard with the tripod mounts, so a little playing around with Small Rig mount and I have my vertical keyboard, affectionately known as the Type Fighter.

To get to vertical I started with desk mounts that I could adjust and progressively increased the angle of the tilt. Eventually I joined the two halves with a 300mm straight rod. But I don't have the photos of that handy.

Also in the picture, my left handed trackball (Elecom) and my Logitech MX Vertical. I alternate the mousing hand regularly. (Trackball for big movements, mouse for fine detail and gaming).

https://imgur.com/a/TdV502g