SketchCasts - A weekly screencast, all about how to use Sketch
The Good Workshop - TGW helps experts plan, run, and track UX, CX, Product and innovation workshops, fully automated and straightforward user experience.
Sketch 101 by Designlab - Learn Sketch in this free course w/ downloadable templates
Git Sketch Plugin - Version control for designers
RookieUp Career Bootcamps - Tools to help designers build great portfolios and get jobs.
Nora - A Notion template that actually solves painful problems of project management in Notion instead of looking beautiful.