We've signposted members to https://www.futurelearn.com/ in the past - a great resource for free online courses hosted by leading universities and other organisations. I was really interested to see this free course: How to teach online: providing continuity for students. https://www.futurelearn.com/courses/teach-online

Lots of resources to support online, distance and home learning shared in this extensive list compiled by Cat Scutt at the Chartered College: https://my.chartered.college/2020/03/online-distance-and-home-learning-selected-reading/

And another list of useful resources compiled by teachers here: https://docs.google.com/spreadsheets/d/1DBUfr1tB3wArRsO9gHS-4cTsPFJGh_yg-s0lGbSPIoc/edit#gid=451259103