Hm, I would suggest Golurk if you didn't already have Chandelure, just to make it more interesting.
But of the others you have, i'd take Beheeyem, Sawk and Druddigon, though I just say that because I like to see teams that don't use as many overpowered things as possible. (No offense to those that do)
Sorry hun, but team advice doesn't go in this section. :c
We have a thread in the Battle Center for it, called the In-Game Team Help, where you can get advice on your team. c:
Or, if you'd like, you can send me a private message and I could help you personally. c: