If you're interested in anything specific just let me know and I'll do my best to set it up.
My plan for a first course, however, is to do a step-by-step guide on setting up your first tank, regardless of size or stock, and going through the basics from understanding requirements for whatever fish you will get to filters, heaters, and the nitrogen cycle. Essentially, this will be a course on everything a beginner should get to know! It will be based on my personal fish-keeping experience as well as research and secondary sources (some of which are my inspirations for this.) I aim to have this course up tomorrow.
Thank you!