Pace University is offering a free 12-week Desktop GIS course begins January 24th and runs until April 17th. The syllabus for the course is here. There is a FAQ at the bottom of the syllabus which should answer any questions you might have. Participants can choose to follow the lessons on one of three tracks: ArcGIS, QGIS or ArcGIS Pro. There are videos for each of the tracks to accomplish the same task, producing similar finished maps. The course will be given through Google Classroom. In order to enroll, you must use a Gmail address.