I watch plenty of mike isreatels videos and his basis of slow eccentrics with a stretch at the long end of the movement and working generally close/up to failure, myoreps etc seem to be good for hypertrophy if that’s what you’re after. Even if you’re not juiced to the gills like he is it is what the current research suggests.
Not sure I’d want to pay what I consider an awful lot of money for his app. You could just cherry pick the advice from his videos on YouTube easily enough and put something together. There’s loads on routines, specific exercise details, rep ranges, nutrition and recovery up there for free.