This has been my solution. Subscribe to a playlist or an entire channel, set up the schedule, and you’re done. If you’re a supporter of the project I believe it has real-time monitoring for new uploads.

I will note that, somewhat recently, YouTube changed the URL format for playlists and this has broken subscribing/downloading playlists that use the new format. I haven’t checked today but there’s a patch that was still waiting to be merged. Unless there’s a new release incorporating it, you’ll have to apply it yourself or feed the URLs in manually for now.