Shows like House of the Dragon

If you want the succession disputes and dynastic fracturing that drive House of the Dragon, Game of Thrones is likely your closest match—it shares the same ruthless political calculus, multiple claimant factions, and dragon-powered warfare across a full narrative arc. The Dragon Prince might scratch a similar itch on the succession-and-fractured-loyalties front if you're open to animation, though it trades Westeros's grim tone for something slightly less bleak. For the reluctant-leader-bearing-dynastic-burden angle specifically, Dragonfyre and Kingslayer probably map closer to character-level stakes than large-scale political collapse, so they're riskier bets depending on whether you care more about plot or protagonist psychology.