Too much of the Internet has become about monetisation of everything. Sure we all have money concerns particularly in the current world economic situation but much of it is over-priced offering poor value.
There are plenty of books available giving great advice and training at low cost.
It may be that you learn better by video and audio and books don’t meet your needs so try Audible or look at Youtube to see if there are any resources you consider of high or acceptable quality and relevance.
There are even some Audible audio courses and books that offer much better value for money the many of the online offerings.
Be wary of parting with substantial amounts of money and the time that you might also have to invest.
No matter who the personality is giving the course; they may be a great writer but consider are they any good as a teacher and/or course designer?
It is in your interest to carry out due diligence and ask about and read independent reviews of the product you are interested in.
Some say writing needs talent, some say writing can’t be taught but only learnt through writing and reading. If you hope people will read your work then you need to know of the best in the genre you want to write in.
You could do worse in your learning journey than taking apart your favourite novel or screenplay or short story and see how that works and then use that knowledge to write your own material.
Remember, writers write.