I rarely have time for videos any more, but I’m a big fan of Bruce Tate at Groxio, who combines interviews, coding in Elixir, and some exposure to other programming languages I otherwise would probably never look into:
https://www.youtube.com/c/Groxio/
Mostly I watch conference talks. For me, German Velasco’s recent one on Phoenix LiveView testing was the most directly relevant and applicable thing I’ve seen all year:
