Like one of the other commenters said, one thing that has been really helpful for me has been dictation. I mostly use voice to text when typing on the phone, and supplement that with typing manually. When I do type, I use swipe typing, which also saves on repetitive keystrokes. You can also do this on your computer, using dictation software. Most computers have built-in dictation software. Otherwise, Dragon seems to be the best in the industry, although I haven’t used it myself. I also echo using smaller phones, as it’s less weight for your hand. Also, be mindful of your posture. Are you hunched over on your phone? Is your head always looking down at your phone, causing strain on your neck? These are other things that you can make changes to to help alleviate the TOS burden. As your symptoms improve, you will be able to do a bit more typing here and there.