Where to find online advanced UX courses [closed]

I have been looking around for online UX courses but they always seem to promote being good for beginners who are looking to get into UX while helping more experienced practitioners. I always find this type of learning not optimal, as a portion of the time you spend covers what you have already learned.

Is there any online courses out there that is genuinely advanced? While I do learn a lot from my work experiences I always feel there is something I am not keeping on top of. Would be good to see whats out there.