This field is moving really fast right now, and so it's a little hard to keep track of all 'AI'. I'd recommend finding some researchers in the subfield of AI you're most interested in and following them on Twitter
https://www.youtube.com/channel/UCZHmQk67mSJgfCCTn7xBfew
I discovered him on Two Minute Papers' similar channel list on the alternative YouTube recommendation algorithm I'm helping to develop. Here is Yannic's list of similar channels which includes a number of AI-research focused channels: