Previously Tildes have had a few discussions on good quality Youtube channels one, two, but I couldn’t find a recent discussion.
I would be interested in peoples recommendations!
Personally I would like to get recommendations for intermediate/harder science or engineering videos. Most are too basic, or very dry lecture based. I know a few good ones like:

• 3blue1brown
• Smarter every day
• Looking Glass Universe

But I would like to know other people’s favourites (including non science ones)!