try second hand online shops like vinted! (idk if vinted exist in every country but it´s not that shamelessly overpriced as depop...but maybe that or ebay would work too) it´s not as convenient as a whole online shop but you can find some real 2000s scene relics and get some stuff for cheap too! the trick is to get to know some names of emo/scene brands to search for but you will find nice stuff tagged as scene too.