Calling for Resources for Learning Common Skills
(slrpnk.net)
This community is primarily structured around the sort of subjects you would see in an academic setting, but learning skills is absolutely within the scope of this community. If you have any, please consider commenting with free resources and advice for things like playing an instrument, learning a language, woodworking, etc.
Learn various coding languages with Codecademy. Follow career or skill paths, or jump around to whatever course you need. https://www.codecademy.com/
Free with paid certificate options. I've personally found the free content to be enough, supplemented with YouTube videos or coding project ideas from elsewhere around the web.