SparkNotes' ten nearest neighbors span comedians, TV personalities, podcasts, actors, and humor accounts — no single subcategory dominates, and the scores compress into a narrow band from 0.92 down to 0.89, the hallmark of a flat shape.

Similarity here measures how closely two entities' audiences resemble each other in composition. The top neighbor, Matt Bellassai (0.92), is a comedian; the second, Jonathan Van Ness (0.92), is a TV personality; the third, John Mulaney (0.92), is another comedian. Queer Eye (0.91), a TV show, and Karen Kilgariff (0.91) round out the five. Tallying the full top 10: three comedians (Matt Bellassai, John Mulaney, Karen Kilgariff), two TV personalities (Jonathan Van Ness, Tan France), two TV shows (Queer Eye, Portlandia at 0.89), one website (AP Oddities at 0.90), one podcast (Up First at 0.90), and one news publisher (AP Stylebook at 0.89). SparkNotes itself is classified as a Website, and only one other Website appears in the top 10 — AP Oddities at 0.90 — making this a predominantly cross-kind cluster. The audience shape is defined less by what SparkNotes is than by a consistent pull toward wit-adjacent media: comedians, personality-driven TV, and public-radio-style podcasts.

The flat distribution across these subcategories suggests an audience that moves fluidly across entertainment and information formats rather than clustering tightly around any single one.