Although it’s been 2 years since the last comment, I thought everyone here might appreciate this tip. Mice with a side scroll wheel, like the Logitech MX Master, are a total game changer! The switch to scrolling horizontally with the side wheel feels so intuitive for my thumb, like it was just waiting for it all these years. I highly recommend it—it can save you hours, especially when dealing with wide tables or documents.
Apple's Magic Trackpad is probably another option, although I personally prefer the ergonomics of a device that fits the palm of my hand, as it reduces strain on my wrist.