The alpha dynamic has been done to death, but some series manage to subvert the power structure so it feels like more than just a fantasy bureaucracy. I keep thinking of the 'Mercy Thompson' books by Patricia Briggs. The pack bonds there are less about constant dominance fights and more about a kind of grudging, trauma-forged family. You've got the main pack, but then you've got Mercy herself, who isn't a wolf but is bound to them through mate bonds and sheer stubborn loyalty. The rivalries aren't always external packs; sometimes it's internal friction, like Sam's struggle with his past versus Adam's modern leadership.
Then there's the 'Green Creek' series by TJ Klune. Calling it a wolf pack book feels almost reductive, because the bonds are so profoundly queer and found-family oriented. The magical tether between the pack members is visceral—they can feel each other's emotions and physical pain. The central rivalry with the witch is brutal, but the real heart is the cost of those bonds and what happens when they're severed or abused. It's emotionally complex in a way that standard pack politics rarely achieves.
For a pure, politics-heavy dive, I'd point to the 'Kate Daniels' universe by Ilona Andrews. The Pack there is a massive, formalized entity with a strict hierarchy, distinct clans (like the wolves, the rats, the hyenas), and intricate laws. Curran's position as Beast Lord is constantly challenged, and alliances shift based on strength, insults, and ancient codes. It's less about the warm fuzzies of pack and more about the brutal reality of maintaining a supernatural nation-state.