heres a website with most nightlife stuff in pgh: https://arcane.city/calendar
more specifically theres hot mass, jellyfish, events at certain death sometimes, bottlerocket has some decent nights sometimes.
omg also 5801!! a gay bar in shadyside, has the best dancing
if you like art stuff heres a calendar with art events: https://petrichorpittsburgh.com/calendar/
also check out the mattress factory, brew house on south side, bottom feeder books (they have a lot of cool receptions), wick monet...
feel free to dm if u want anymore recs :)