It's a tough market out there and every little bit counts. That's why websites that give us a chance to boost our skills and keep them up to date are more important than ever.
EdX gives you access to over 2500 courses from 140 institutions from around the world. Sign up for classes from reputed institutions like Harvard, MIT, Boston University, Berekely, Sorbonne, Australian National University, Hong Kong Polytechnic University and more. Learn everything from Blockchain to Business Analysis on the site. Most of their courses are self-paced which means that you can work at your own pace and are not subject to time constraints.
They also offer a variety of courses from MicroMasters programs to subject-based courses that are specifically meant to boost a particular skill like the CS50 for Lawyers.