I met my fiancee at a party/social gathering..... A friend of mine met his current wife online. Another friend met his through friends. An old roommate of mine met his wife at a bar or club. Where I used to work, 2 of the people there started dating seriously, although I don't recommend workplace romances.
Another possibility, if you're wondering where to meet women, is to join a group related to an interest you have or to go places related to interests you have. You'll share an interest in common if you meet women there or if there are no women in the group and there are any guys in the group that you'd like to hang out with, do that. You can make new friends and there's also a possibility that at some point in the future they will introduce you to other people in their social circle.
You can also do the same with the women in the club/group that is related to your interests. Instead of dating within the group, you can make female friends and then become a part of her social circle, which might actually lead to you meeting more women. Doing that might serve you better and you'll avoid introducing drama into a fun group of people that share an interest or hobby.