TLDR: Stack overflow and similar question-and-answer sites. Maybe adjust your expectations? IMO, a tutorial, because of its handholding nature, targets beginne

TLDR: Stack overflow and similar question-and-answer sites. Maybe adjust your expectations? IMO, a tutorial, because of its handholding nature, targets beginners. If you consider yourself an intermediate, you don't need tutorials. Your options are a combination of struggling though material for experts, re-reviewing material for beginners, and asking questions. Stack Overflow's question-and-answer format often means that the highest-ranked answer is a tutorial that targets intermediates. The answers are terse enough that they assume you have general knowledge of the subject, but also assume you aren't an expert. One more thing to realize: In software engineering, you're always a beginner. You're always working with some kind of new something, either developing something new, or working in a new stack, or working with a new API, ect. Get used to being a beginner, intermediate, and expert all at the same time.