I don't really see the point here. I can find plenty of online poker courses on Youtube and other sites for free without spending a dime even if I am not a professional poker player myself. Some of my friends never spent a cent and became pros through Youtube.
Unless your courses are something special, I don't see how you can sell your services in bulk here on this forum op.
you aren't totally wrong since Youtube and forums are really full of informative stuffs so some people may do good just by learning there
actually beginners should start with these free resources and if they want to level up their game maybe they can start trying these ( assuming they have good bankroll cause it doesn't make sense to spend 100$ when your whole bankroll is like 300$ )
I don't see any problem in paid courses as well , usually these ones are focused on what you exactly need and starts with you from the very beginning ( depends on the course tho since not all courses are the same )
paid courses are usually more deep as well so usually the info is more heavy than what you find on youtube
at the end poker is a long term game and you have to keep to studying and improving in order to compete , so no single course or source is enough to become really good