I think teaching would involve a lot of paperwork, reports etc...but it could depend on age group, elementary, high school, college.
Reading & grading homework postures is quite the same as computer posture..and I suppose there is a lot of computer use with it also.

My hand writing is very bad , but my TOS came from multiple repetitive motion injuries..hand & arm cramps & tension combined with shoulder & neck problems.

My suggestion is to find out what you can do without repercussions or flares, then look for jobs that fit.

I find being able to move around and do a variety of activities works for me, but it took 2.5 yrs of PT & chiro & ongoing self care to get to that point.