Many organizations are closed now which may provide some people with time they don't ordinarily have to learn new skills. If you know of any free training resources that may help people learn something new during this time, please share the information here.
Edx is great. There was a great SQL course there i audited
Can you share some titles of courses you have found particularly valuable?
Yes, absolutely. Most of what I have learned about computers has been on the job over the past 15 years, so taking a structured computer science course was very helpful. I really enjoyed this one: https://courses.edx.org/courses/course-v1:HarvardX+CS50+X/course/
I am currently enrolled in the Statistics and Data Science MicroMasters program as part of my continuing education: https://courses.edx.org/dashboard/programs/71c95834-f6df-4f78-8cd7-c6461dd9b1d4/
https://courses.edx.org/courses/course-v1:HarvardX+PH525.2x+1T2020/course/I have also taken a linear algebra course to help me with my Python studies.