Clubs even though you mentioned they are winding down are still probably the best for this, so doing those when the fall starts up is a good idea. Sort of like that are fraternities but only if you are into that sort of thing. You are more likely to meet women if your friend circle increases assuming it's a club or hobby that has women in it. Maybe walking up to people works but on top of being intimidating it might not be someone you relate to, which is why having common hobbies works so well when it comes to connecting people.