Shout to Clark Dever on this. You want early-mid-80s SoCal style hardcore? From kids who probably weren't alive back then? Cerebral Ballzy is here for you. (Brooklyn, stand up!) Their forthcoming full-length is embedded below, because I won't be listening to it at my wedding.
Relatedly: it seems that as you age, there are never enough people around for a circle pit when you want one.