Here is a list of free courses that you can use as an adult or even for home schooling. As more become available, I will ad t the list. I will also add some courses I make when I am done with them.
Lang 8 For learning a language.
Tom woods Liberty Classroom Use discount code MYBASIC, MYPLUS, or MASTERY depending on the level you get
Rocket Languages Use discount code LIBERTY60 for 60% off.