Very very late notice, but maybe you don't have anything planned this Saturday night and are feeling dancy??
I stumbled upon this Klubb Fuldans thing not so long ago, and wanted to give it a try (see description here: https://sodrateatern.com/klubb-fuldans/).
Entrance is 150 sek (120 if bought in advance) and it opens at 22.00.
We can meet around 21.00 at a pub called Papagallo (Götgatan 5) and have drinks before heading there around 22.00 and dance like nobody's watching :)
[So just to be clear: we meet at 21.00 at Papagallo. NOT at Södra Teatern.]