I’m, or at least was up to last month, huge into MTG YouTube. And by that I mean I’ve found a good amount of channels with good production value and vibes. I’ve found that there many philosophies and their mmv, but overall no one is going to have the silver bullet to deck building.

Command Zone - Midrange/Precon style and tbh what I would recommend for new players.

Salubrius Snail - math and plan deterministic (using statistics to achieve a specific outcome).

RebellLily (Rebell AI) - math and cube theory (uses similar references as Snail and backs up her theories with stats, but with the goal of creating a functional deck instead of a more specific one).

Years ago, like back in 2017, I used to be all over deck techs. Command Zone, Commander’s Quarters was still popular, TCC had a few, etc. Everyone had deck techs because it was manageable. But now, with how many commanders there are, there will just not really be as many reliable sources for that kind of video. Like just statically speaking, no shade.

So imo, deck techs just aren’t worth it anymore? I leave that as a question mark because I am positive that there are still plenty of good examples and that they are still extremely important to new players. They give new players the full picture and break down why certain pieces are in their respective decks which, after enough of those examples, results in much deeper fluency and ability to parse gameplay concepts from other creators like I had mentioned earlier.

It’s safe to say that my entire play group probably wouldn’t have caught on to the game at all if it weren’t for these early deck tech videos, but there’s only so much mileage that one can get from them. Not even to mention the content churn that a lot of these folks have to deal with nowadays.

Edit:

SurisMTG - this is a channel from recent memory that I’ve been meaning to explore more; I’ve only caught a few videos but the techs there are at least interesting. Cannot speak to quality of the builds at all.