Who to buy next

Hello, I am currently in Gold V and as much as I would like to play other roles, the only one I'm good at is jungle. I am about to hit 6300 IP and I was looking into giving my jungle pool some more diversity. I currently main Eve with a 70% win rate and I also play Maokai with Amumu and Wukong played a bit less. I was thinking about getting possibly someone like Vi or Kha'zix next but I am open to other ideas. Any help is appreciated and thanks for your time!