[pritambarhate]

I take a lot of Udemy courses. When I want to learn something new I generally buy a course (look for at least 4 stars and a minimum 500 votes, though popular topics will have thousands of ratings) and binge-watch the entire thing in a couple of days. It gives me an idea of what's possible with this particular technology. Later when I really need to use that technology I spend futher time doing code examples etc. Has worked really well for me to keep abreast of multiple technologies in my CTO job.

One main issue is that most of the courses only cover bigginner and intermediate level tasks only. I think the reason for this is that an instructor needs thousands of sales to be profitable on Udemy. Even for relatively popular topics like Magento and Salesforce development, one sees very less enrollment numbers. Only core popular techonolgies like Python, Node.js, AI/ML, etc see thousands of sales.

[satvikpendem]

I've found this person's courses [0] to be very high quality, and they go through pretty advanced topics, such as convolutional neural networks for natural language processing, which might be to your point.

[0] https://deeplearningcourses.com/course_order