If you are into techno, I would recommend either Womb- one of the best clubs in the world, but small so often too crowded, even for a club- or Ageha- also a great club, not quite as stylish as Womb but much larger so never crowded to the point of being stiffling.

Womb is in Shibuya. Ageha’s a bit out of the way- I think maybe it was in Shinkiba.

I think which of those clubs you choose comes down to which has the better act performing that night. You can find that info on their Web-sites.