I am quite a fan of the listening while reading approach. Recently I have added reading out loud or whispering to that approach. I am using the YT Language Reactor extension rather than Lingq and listen to (and simultaneously read the subtitle) a sentence. Thereafter, I replay the sentence focussing on listening. Then I read out the sentence loud or whispering 1-3x. When I whisper, I actually use the muscles in my mouth, so it is different from subvocalising, which I normally do.
I am learning Mandarin and I feel this makes an enormous difference to my understanding of the sentences, oral fluency and probably vocabulary retention.
Has anyone used this method?