Nine of Hank Green's ten nearest neighbors by audience similarity are not authors — they are actors, comedians, TV shows, humor accounts, podcasts, and a website, with John Green (0.93) the sole fellow author in the set.

Similarity here measures how closely two entities' audiences resemble each other in composition; a score near 0.93 signals near-identical audience shape. John Green's pull is the strongest in the top 10, but the rest of the cluster fans out broadly across subcategories rather than converging on any single type. Two humor-and-satire accounts — Ladies And Gentlemen, The Weekend (0.88) and Terrible Maps (0.88) — sit just below, followed by actor Anders Holm (0.86), TV shows Queer Eye (0.85) and Parks and Recreation (0.83), website SparkNotes (0.84), podcast My Favorite Murder (0.84), comedian Bo Burnham (0.84), and actor Nick Offerman (0.83). No subcategory dominates: actors appear twice, TV shows twice, humor accounts twice, and comedians, podcasts, and websites once each. The scores compress into a relatively tight band from 0.83 to 0.93, consistent with the broad shape — no single neighbor towers over the rest, and the audience overlaps spread across comedy-adjacent entertainment, internet humor, and educational-media properties simultaneously.

The overall picture is an audience that cuts across entertainment formats and tones rather than clustering tightly around any one kind of content.