What's currently the best MTT platform to level up my game?

Hi 2+2 ppl,

Short intro about me: I just turned 30 now and back in 2012/3/4 I was actively playing MTTs on Pokerstars, 888 etc.

Since then I've been way more into crypto, got some IRL businesses running successfully and don't really have time to play poker for a living, nor I can get to a level which can yield me what I am currently making from my businesses. Recently I did some sessions to get back into the game and my game style is totally off compared to what is the current meta.

I am looking for a platform/coaching which can help me get back in shape, as I feel totally out of the game, especially for post-flop play.

Note: I am by no means trying to become a pro/semi-pro, but rather have some decent performance when going to 500$+ live tourneys or enjoying a weekend at GGpoker high stakes MTTs, because with my current skill-set I am probably the biggest fish at the table.

Cheers