@thaiviet14 have you considered buying books over courses? Personally I’m a bit old school. I like books.
Yes I have book too in e-book format but given my schedule I can only practice with app (and I have more content that I can use already ).
I am planning to buy a book because I really like the presentation GM Finegold did with the author.
https://www.amazon.com/Evaluate-Like-Grandmaster-Eugene-Perelshteyn/dp/B0BHNF5CWB/ref=sr_1_1?crid=1YY32YCUN36I4&keywords=evaluate+like+a+grandmaster&qid=1666446193&qu=eyJxc2MiOiIxLjI1IiwicXNhIjoiMC42MiIsInFzcCI6IjAuNTQifQ%3D%3D&sprefix=evaluate+%2Caps%2C332&sr=8-1
I was able to solve the "evaluation" presented in the youtube video due to the course " the art of exchanging piece ", basically here if you had taken the free pawn you would have traded a medium knight against your best bishop :-)
Ordering the book is a little complicated because I am in South East Asia but I am happen to be living very close of a local GM and I want to offer him this book :-) as I am pretty sure that he does not have it.
@thaiviet14 have you considered buying books over courses? Personally I’m a bit old school. I like books.