Which e-learning platform is best?

Hello, guys, I wanna know which platform is best for learning facebook advertising courses online. As today's marketing trends change people are now searching more on social media than any other platform, that is why I'm looking to do this course as this course is increasing in demand and firm hunting for people who know how to do to social media marketing. For that, I need you to suggest to me one of the best academy from where I can so this course.