Best book on Engineering Management

Been an eng manager for quite some time now, and doing decent. My manager is a VP and has no time to mentor. I want to up my game on engineering management, primarily aiming to increase output of the team without being a douchebag. Looking for some books on that. Already read The Managers path, but felt like mostly entry level stuff. In other words - looking for leetcode equivalent of eng management. Any recommendations? YOE: 11 TC: 365