The top 10 neighbors for Captain America span four distinct subcategories — Movie Franchises, Fictional Characters, Musicians and Bands, and Actors — with no single type dominating and scores compressed into a narrow band from 0.93 to 0.98.
The shape is flat: The Avengers leads at 0.98, followed closely by Doctor Strange (0.98) and Ant-Man (0.98), but the gap between first and tenth is small enough that no single neighbor stands apart structurally. Three neighbors are fellow Fictional Characters — Doctor Strange, Iron Man (0.97), and Thor (0.94) — while four are Movie Franchises: The Avengers, Ant-Man, Guardians of the Galaxy (0.97), and X-Men Movies (0.94). That Marvel-universe cluster accounts for eight of the ten neighbors. The remaining two break from it: Demi Lovato (0.93, Musicians and Bands) and The Flash (0.93, TV Shows). Their presence at the edge of the top 10 signals that the audience shape extends modestly beyond superhero IP into pop music and superhero television, though neither reaches the density of the core Marvel cluster.
The flat distribution across this top 10 reflects an audience whose shape is defined by a coherent franchise ecosystem rather than any single dominant pull.