Angel Konan is not a tank, its an Angel God xD All jokes aside though, in my opinion, Angel Konan excels the most in teams that feed her Chakra to make use of her passive. Her passive (as shown below), allows her to gain 1% of Ninjutsu and Combo Rate for every 1 chakra you possess, that is very strong xD

Any main can work with her but if you find her squishy, it might be good to use Earth Main or Wind Main as they may give the utility needed for her to survive as well as make use of her full potential.

~Jib

Jib Edit: Fire main team sounds nice though XD That's a lot of controls, I would be scared/annoyed fighting it xD