Club game like online dating is almost all looks based. So if you are talking about one night stands its the best looking, best dressed guys in the club only.
Also its like a womans code that "we all leave together" you will almost never get a girl to leave her friends unless you know her from outside the club.
Now if you have a friend, your best shot is approaching sets of 2 and getting them both to come, but even that isn't reliable.
So your best bet is
Go to the clubs/bars to have fun only. Dance, get a number or two, act crazy, cut loose, because no one there is going to remember you in 2 days.
If you approach, do it in the day.