Welcome to Hive (I know, it's a slightly belated welcome, but hey...).

Although I haven't played MTG for years, I used to run an FLGS so soaked up a bit of knowledge about it, and still love seeing reviews of cards and the decks people put together. I'm in the Tabletop / DND community here on Hive, where a couple of the guys periodically post Magic-related content, so that might be one good place you could cross-post to.

Also, if you're used to making YouTube videos, you could look at signing up on ThreeSpeak, another part of the Hive ecosystem which focuses on video rather than blog-type posts. Again, upvotes get you crypto ! I'm not sure what the etiquette would be over directly cross-posting the same videos you put up on YouTube, so that's probably worth checking out, it might need minor edits just to make it unique, or it might be enough to just put up a statement saying "also posted by me on YT".

But the important thing is... enjoy your time here ! I look forward to seeing more gaming-related content :)