A further book, additional to the Trevor Thom book five, which I found useful and can recommend is by Monique Agazarian. (I believe I purchased this through Amazon.)
I don't hold with confusers, though that is a personal opinion only: I enjoy written examinations and relish the challenge.
I used RANT extensively during training for the IMC rating, and found it most useful. Unlike MSFS, it does not require one to purchase a 'joystick' (et al.) in order fully to make use of it.