Linux Cast is…okay. The long form conversation format episodes are usually better than when its just Matt.
Brodie should definitely be at the top of this list. He works in tech, devotes himself emphatically to the subject of Linux, has some really amazing guests on his Tech Over Tea Podcast, and is imho THE Linux YouTuber atm.
Chris Titus Tech is more an honorable mention, as his channel focuses equally on Windows and Linux, but he has some amazing scripts for iptables configurations, and optimizing gaming on Linux, amongst other related topics.
The Linux Experiment is great for quick recap of Linux News. Learn Linux TV is great for Linux sysadmin tips.
I don’t care for Distrotube, I won’t go into details except to say I don’t support Trump. Similar sentiments go for the Bible thumper, Luke Smith, whom doesn’t really post much Linux content any more afaik. I will admit they did post useful bash scripts from time to time though.
Trafotin and Bugswriter are interesting channels in the Linux Youtube space that I think are worth checking out.
Overall though, if you’re looking for quality Linux content on Youtube that keeps you informed and up to date. You can’t go wrong with Brodie Robertson, The Linux Experiment, and Learn Linux TV. That’s all you really need imho.