LF a knowledgeable support to learn from

I ranked mid plat last season playing adc and support, my two favorite roles. I recently got onto my college's league team as the support and am looking for more ways to improve with and for the team. I have alot of experience and games on the role but wanted to get into playing more tanky supports such as taric, braum, and tahm kench because I just dont seem to click well with it. I am also our teams shot caller so anyone who has experience in teams as well and has advice would be really appreciated!