I watch a fair amount of MTG content, almost all of which is EDH based.
Most of Tolarian Community College's MTG content and product reviews with the Booster Box Game being my fave. Command Zone and Game Knights though I skip the breakdown episodes of their gameplay. I also agree their sponsorships are starting to get in the way of the content and it all feels overproduced and scripted. I watch some of Commander's Quarters stuff, the topic will dictate if I hit play or not. I don't miss any of MTG Mudstah's stuff, Mondays and Thursdays are highlights of the week. Cure for the Common Game as I have a certain amount of respect for anyone crazy enough to try to build [and keep] a deck for every legal commander. Occasionally catch Playing with Power or Casually Competitive depending on mood. I watch about half of Tomohappy's videos which is Tomoharu Saito's Magic
channel [or one of them anyway]. I enjoy the box/pack openings and playing of old tournament decks the most, though his content matters less to me than its all in Japanese and I'm trying to learn the language. For the same reason I've also started watching a
channel called 開封大好き [Kaifuu Daisuki or 'really like opening/breaking the seal']. Not sure why I enjoy box openings so much...
I watch probably about half of the content of Jumbo Commander depending on subject. I watch some of PleasantKenobi's MTG content as coming from a British family and having lived in London for almost a year, I find him pretty funny. I keep up with Heroes and Legends MTG for market/investment info more out of
curiosity and to know if I need to grab something before speculators
snag all copies of something I may want to play and don't have. I also watch Tavis King's
channel, he focuses on MTG history, miscuts/misprints and forgery and he just knows so much about how the cards are produced and collated but I'll admit he can be a bit dry for most viewers.
I do view some decktechs but generally only if I have one or more slots left in a deck I'm trying to build and am looking for something outside the box to give the deck a different angle of attack or extra resilience, etc. and could use a suggestion outside of the typical stable of cards I gravitate towards. Some of what I listed above is focused on gameplay so obviously I watch a lot of that as well.
Mostly importantly, this post has taught that I don't have a life and should do something about that...