The primary DGK logo isn't a single "out-of-the-box" font you can download with one click. It is a piece of custom typography, but it draws heavy inspiration from and varsity-style scripts . The Anatomy of the Logo

The font doesn't just say "DGK"; it says "we belong here, but we’re doing it our way." Using DGK-Style Typography in Your Projects

For the more "street" side of the brand, hand-style scripts are the way to go.