Minitube - Minitube is a YouTube desktop application.
TubeLister - Generate a YouTube playlist from your opened tabs.
FreeTube - FreeTube is an open source desktop YouTube player built with privacy in mind.
Tuned Rocks📺 - Discover🔎 curated Youtube videos 24/7
NewPipe - NewPipe is a lightweight YouTube front-end for Android.
Vidlis - Create music playlists from YouTube videos.