Ryerson teaching

A series of practical online courses, originally offered as MOOCs, converted into interactive open textbooks with no sign up. They are very relevant since many jurisdictions that are enacting laws around access to information and information technology for people with disabilities.
Next Cohort

A curated list of the best Cohort-Based courses
MIT Open Courseware

Free lecture notes, exams, and videos from
MIT. No registration required.
uxtoast

Online lessons and courses to learn the fundamentals of UX & UI Design, including design laws and principles, visual design, and design processes.