i don't study in the form of reading material or listening to training/coaching videos very often. the content is definitely helpful, but i just can't pay attention to it for too long. for example, i love the gripsed mtt training/strategy videos, but when they're an hour+ long, it feels like information overload sometimes, even if he is just covering 3 main topics.
so, instead, i prefer watching mtt hand reviews by players like evan jarvis, jonathan little, and others.
in a hand review video, evan jarvis can go through 20-40 hands and touch on so many different topics from stack size ranges, bet sizing, bubble pressure, icm pressure, icm pressure adjustments, etc. basically everything he talks about in his training videos, but i get so see everything in action. this is a lot more helpful for me because, as i play, i'm going to be in these situations and a 2-3 minute talk about a specific situation, while being able to visually see the action, has a lot more impact than listening to a 30+ minute video on the same topic.
so, whenever i play, i'm watching these hand review videos. i know i'm never going to play in a $200+ buy-in mtt online, but everything still applies to the $1 mtts that i play.