jcole post concert : alternative ways to spend time from midnight to 6AM in Zurich

im coming to Zurich from milan for the jcole concert. post concert I will have the whole night before my bus in the morning. looking for company and budget friendly ways to spend time at night, something slow yet fun. not looking to party too hard, just want a laid-back yet interesting experience - maybe a way to witness a lesser known side of Zurich?

also if you're going to the concert solo as well, hmu! maybe we can meet up before the show?