[Competitive] How would I make a viable team of my favorite Pokemon?

I want to make a team out of all my favorite Pokemon to battle my friends with in my copy of Ultra Moon. Problem is, a lot of my Pokemon have overlapping type combinations so it's hard to get good coverage with them.

I want:
Braixen (maybe willing to use Delphox)
Barbaracle
Ribombee
Nidoking
Ampharos
Noivern
on my team, since they're all my favorite. What's the best way to go about making a team out of these guys?