Duolingo's top 10 nearest neighbors span technology brands, comedians, actors, non-profits, a TV show, and a website — with no single subcategory dominating and scores compressed into a narrow band from 0.88 to 0.91. That flat distribution is the structural finding: no one entity pulls significantly ahead of the others.
Notion (0.91) sits at the top, the only other Technology brand in the top 10 alongside Dropbox (0.89) and Slack (0.88) — three productivity-adjacent tech tools whose audiences share Duolingo's shape. But the majority of the top 10 is cross-kind: Kumail Nanjiani (0.90) and Phillipa Soo (0.88) appear as Actors; Hasan Minhaj (0.89) as a Comedian; Public Citizen (0.89) and Planned Parenthood Action (0.87) as advocacy organizations; Malala Yousafzai (0.88) as an Activist; and Reddit (0.89) as a Website. Patriot Act with Hasan Minhaj (0.89) rounds out the set as a TV Show.
The mix — tech tools, comedians, actors, civic organizations, and a general-interest website — points to an audience that is broadly digitally engaged and culturally curious rather than one organized around any single interest cluster.