How do you keep up to date and find the most relevant papers? What tools or methods you use to keep up with the frontier of the field? I follow some specific papers and  authors. I was wondering what's the best way to keep up to date with relevant things with so much information there's available.
Seminars and conferences are the best ways to get exposure to working papers, in addition to following specific authors. (Some of my colleagues also follow economists on Twitter, where they sometimes post new working papers.)

In addition, subscribe to the email alerts from the journals in your field/interest. This will get you up to date with what comes out in the latest issues. The AEA journals (as well as Econometrica) will also send you the titles and abstracts of the articles; the Elsevier journals will only send you the TOC with the article titles only.