Who should I get?

This is my lineup: https://www.mut.gg/24/lineup-builder/35b7a9cb-caa8-4f85-8b4e-a8d8dcbe5197/

I run a slight commanders tt with several cheats and don't know who I should get? 

On offense I run mainly bunch from colts, and I run mainly nickel over from chiefs on defense. 

Any suggestions?