Me too but I don't suscribe to channels that easily because I don't to be overwhelmed by Youtube recomandations on just my channels.
So I have side notes on various subjects I am interested in so that Youtube doesn't interfere on what I want to see at a given time.
I am just using a text file for this but it would be great to have thumbnails. Like a catalogue.

Yarp - author of P3DO Organizer for Poser