Welcome StackedDeck!
I have definitely found the Splintermind podcast fun and helpful. For tactics I recommend Mushkilla, Betray the World, and Skaredcast. Definitely Skaredcast. I've seen that guy pull victories out of a hat against seemingly impossible odds (like bringing an all-Haywire Scourge unit against an all-wounds Wolf-star list in an under 2000 point game and still winning). Skaredcast has a great youtube channel.
Enjoy your time on the forums!