Most Buddhist videos on Youtube (in English language) generally only present the liberalized teachings (philosophy) and stories. There are only a few channels that make a genuine attempt to explain the actual teachings as recorded in the Tipitaka. One of those that I found is this: No Self, Selflessness (Anatta/Anatman) & The Five Aggregates
Despite some of the common wrong translations of keywords, I think she does a pretty good job for the most part in her video explanations. It looks like she will do great if she got access to the actual meanings of anicca and anatta.