Looking for a 1v1 mid partner prefer Diamond 4+

Transitioning from Top to mid lane would like someone to do 1v1's with to improve last hitting with an opponent, trading properly, and figuring out ways to play matchups. I play mostly Ahri mid would like to do matchups with meta mids if possible and would really like to learn how to play vs assassin matchups (Fizz,Zed,Akali,Leblanc). General rule of first to FB / 100 cs / Tower wins.