Jason LefkowitzVertical Mouse Update: It's fine. I got used to it in about four minutes. If you've been considering getting one but are worried it will feel too weird, it will not
This is the vertical mouse I bought. Not saying it's the best one you could possibly buy, just that for me it's been fine
https://www.logitech.com/en-us/shop/p/lift-vertical-ergonomic-mouse
samir, a terminally deprecated method