Medically Reviewed By: Laura Angers Whether it be a recent breakup you went through or a relationship that fell apart a few years ago, you're out in the single scene again, and you're ready to mingle with like-minded single folks. You might be asking yourself, Where do I go? Nevertheless, you're ready to get back out there and want to know the top places to mingle with other singles. Source: unsplash. Well, things have changed. In fact, there's even a National Singles Day, which is celebrated on the last day of National Singles Week which is observed annually during the third week of September.