I have a list of resources (videos, books, etc) on my website. Let me know if I should add any! https://www.michaelrihani.com/bitcoin/
Discussion
For motivated learners with some technical background, I always recommend having the Chaincode Labs self-paced seminars bookmarked.
They're fantastic resources with recommended readings, videos, and discussion questions.
They pair very nicely with Mastering Bitcoin / Mastering Lightning.