Shows like A Knight of the Seven Kingdoms

If you want that specific blend of earnest character-driven fantasy with a seasoned warrior and younger companion facing moral weight through their partnership, you'd likely find the most overlap with Dragonslayer or DragonHeart—both ground their medieval quests in the emotional dynamics between mismatched partners rather than spectacle. Game of Thrones might scratch the world-building itch if you're after the larger political machinery beneath personal honor, though it trades the intimate buddy-quest structure for sprawling ensemble drama. The Green Knight could work if you're willing to trade the companionship element for a slower, introspective take on knightly honor tested by supernatural encounter.