P5 ADC Main LF Support to duo to D5

Want to hit diamond 5 before the season is over. I have every adc but Draven (just can't play him) and can play every adc without a problem. My best adcs are Vayne (obviously lmao), Lucian, Ashe, Twitch and Sivir. Must be at least plat and a support main who is willing to learn with me and have discord so can we call and talk. Thanks!