re: This might be a silly question, but how do you track contemporary good literature?

I’d say start with the book awards, enter the ones you like onto a Goodreads account, and go from there. But in my experience, it’s a low percentage shot. The books never seem to live up to what they’re proclaimed to be, to me anyway. The decades of criticism that the classics go through does that work instead.
What I’ve had the most success with, and what I think you might be looking for, is the New York Review of Books series. The titles are obscure, the writing styles I’ve found are more modern, and they definitely go deeper than your normal fiction. Haven’t read one I didn’t like, and loved the John Williams novels, as well as Warlock.
But if what you’re looking for is a steady stream of good literature written since 2010 I can’t help you. Would love to find that as well.