The New Yorker and NYRB have already been mentioned; they'd be my top two. In terms of less mainstream sources, for thought-provoking long-form pieces mostly a

The New Yorker and NYRB have already been mentioned; they'd be my top two. In terms of less mainstream sources, for thought-provoking long-form pieces mostly arising out of an economic justice perspective, I'd suggest Current Affairs. https://www.currentaffairs.org https://www.currentaffairs.org And though it isn't a periodical, for long, smart pieces on sociology, history, economics, contemporary society, etc., I'd suggest Slate Star Codex. i.e. http://slatestarcodex.com/2014/07/30/meditations-on-moloch http://slatestarcodex.com/2014/07/30/meditations-on-moloch Oh, and if you're interested in literature, which more broadly extends to culture throughout the decades, then the Paris Review has an incredible tradition of long-form interviews. https://www.theparisreview.org https://www.theparisreview.org