Clothing store recommendations in Chicago (preferably thrift stores / curated thrifts) ?

Hello, I'm going to a MACHINE GIRL concert on Friday and I am freaking out because I have no idea what to wear. I'd like to hear where you guys like to shop! I tried going to Hot Topic today for the first time, but I swear to God, I saw similar clothes on Shein years ago for a significantly lower price, so I had to pass.

I used to like going to the Buffalo Exchange store in Wicker Park, I love the overall vibe and everything, but the prices there are a bit insane, as I saw multiple cases of them selling used clothes with a price higher than if you bought the same piece but brand new!! I don't care where it is, how far the store is, what are the prices etc... (as long as they don't sell overpriced pieces from literal Shein). Usually, I go to Goodwill but it can be hard finding something specific, and it all depends on the location as well so if you know any dope Goodwill locatios lmk!!

I love all kinds of alternative (or not so alternative) fashion, so any recommendations are appreciated!! Also sorry if I made any mistakes in the text, English is not my first language :))