Barcelona has a different party every day. With WELOVEBCN you can get free guestlist or discounts without overpaying at the door.
From Monday to Sunday, check the lineup: Jamboree midweek, Sutton/Otto/Downtown on weekends, Shoko and Opium depending on the event.
Tip: add your group on WhatsApp or via Lists & Tickets, and arrive before the guestlist cut-off.