I noticed a couple of sites having free courses at the moment.
Professional Photographers of America
Nikon has 10 courses for free
I had a lot of problems with their site and I have noticed comments elsewhere that many people have the same problems.
One tip, don’t scroll down and click on the courses. Just click on the big play button in the top, fill in the form (you can use a fake e-mail address, there is no validation) and then a player with the ten free courses will appear.
Fro Knows Photo
Sue Bryce Education
Please post here if you know of other sites with free courses.