The only dance clubs and
bars I am aware of in Nuevo are actually located in the resorts, I believe the Mayan has a disco on site (I know the Marival does).....out in Nuevo, you sacrifice quantity and variety for peace and relaxation. Works for some people, not so much for others.
If you want a bigger selection than that, I suggest going to the Malecon, Marina, Old Town or
Hotel Zone for more choice.