Wedding after party locations Help!

Hello All! I was hoping i can get some fun afterparty locations post a wedding in Oct at Samcheongak. Although we are throwing an afterparty at the wedding, it must end at 9pm, which is early and we want to go to an After after party (especially for all the foreigner guest). I anticipate 40-50 people. And yes we checked out "Beverly" in Itaewon but its sold out. Essentially, a laid back party vibe with a DJ and cocktails and not too expensive, but something that looks for photos. Please locals help us out!