Came across this on The Verge. The entire course is free until end of April, just create an account to get started. Seems like a good way to pick up some skills while in quarantine ;)
Each class is taught by a professional photographer and provides in-depth lessons to help you get better at taking photos. Some courses cover Nikon-specific products, but many of them teach you the fundamentals of photography, such as a course that teaches you how to photograph your children or pets or the basics of making a music video. So even if you don’t own a Nikon camera, many of these classes might still be worth a watch."