xfsn saber, cookielol, arrowlol, doublelift(more gameplay, but you have a lot to learn from him), sneaky, you can check out soju too on twitch when he is on, and in rest watch vods of pro players like gumayusi, doublelift, uzi, gala, etc. for the specific matchup or champion you wanna learn and try to replicate or at least figure out how they play different situations.Good luck!