by Toni Fisher. There's a student and teachers edition with learning materials that focus on a single story for each week of the semester. It'll be available in Q2 of this year.
Introduction to web programming for GIS applications is a $100 course on Udemy from Michael Miller. Check social media for possible discounts.
Geospatial Brainstorming Blog: Why QGIS should be part of everyone’s GIS toolbox - The same Michael Miller noted above offers the "why" of QGIS. Of note is this comment on the post on LinkedIn: "My agency is so far behind in technology, I don't even know what this is. No training and lack of support for GIIS [sic] is my situation."