human
I want to find a good online course in a specific field. What are the best sites to use?
assistant
The first place I would recommend is Coursera. They have a wide range of courses from top universities and companies, as well as some specialized courses like coding, data science, and more. 2 Another great option is edX. They offer courses from Harvard, MIT, and other top schools. 3 Udemy also has a wide selection of courses, including business, software development, and more. 4 Khan Academy offers free online classes on a variety of topics, from math to history. 5 Finally, you can check out Udacity for computer science, artificial intelligence, and machine learning courses.