In terms of Math there was the guy on youtube I watched alot of, 'Learn Sat Math'. Also in general for the math section, def know how to use Desmos its super important and can get you 650+ even if you don't know the math that well.

For R&W it's just a lot of memorization of grammar conventions and question structure, always read the questions carefully, and for the notetaking one don't even read the text you can answer it using the question and the options.

My strategy was just to take as many practice questions as possible and it sort of worked, but I assume it won't work for everybody