PLEASE help me

Been a fan of this sound forever and I'm planning to archive the early 2000s underground scene (hardcore/emo/skramz/metalcore/violence....). I've been using MySpace archives and a few other sites like discog, but I'd love to get some help from the old-school heads. Looking for the most obscure bands possible, local scene lore, some of the main venue and scans of old flyers or rare merch. Any tips on where to look?