There is a wonderful, free short course, Teach Access Study Away, run by the Teach Access organization each year.
The 2023 Teach Access Virtual Study Away is a two-part series. Part 1 focuses on the basics of accessibility and disability; Part 2 covers more advanced topics so completion of Part 1 or a previous Study Access Away session is required.
The two parts combined total 7 virtual sessions, each 1 1/2 hours on Wednesdays starting on April 5th. Signup for 2023 closes on March 25th.