Looking for high gold/ low plat support to duo with me (serious)

I am looking for a support do duo with me not only to plat but to high plat or even diamond. i feel like my mechanics are good enough to be plat at the least but my luck with support arent the greatest. I main vayne. jhin, ashe, sivir, ezreal, jinx, Draven. Add me if you wand to test our partnership out. :)