Favorite Clubs with No Cover Charge?

Hey New Yorkers, just moved back to Brooklyn after two years abroad. Apparently things have changed in Meatpacking. More clubs are charging cover, and Pacha has closed. I know, I know. But I like the music. So I'm wondering, do you know of any good clubs in Manhattan or Brooklyn that don't charge a cover, or have promotional events where you can get in for free? I like anything that's made on a computer. Thanks everyone!