Getting back into metal shows

I used to go to metal shows constantly when I was younger, plus a few festivals every year. Then I got married, work got busy, and at some point I realized I hadn’t been to a concert in ages. I’m not looking to start going every week again, but it’d be nice to catch one of my favorite bands or just hear some live music on a free Saturday. Where do you guys check who’s playing in New York and when?