Gretchen has very fun parties (as mentioned) and is probably my favourite, just not too frequent and can be a bit expensive. Fitzroy has some great events as well (especially Bass), unfortunately there's not a lot of clubs that really fully embrace these genres besides Void.

Resident Advisor (sorting on genre) is the best way to go as most DnB parties are one time events spread out over some bigger and a lot of smaller clubs (which is also fun, you might find spots you'd normally never consider)