Here are some non-binary public figures:
Alok Vaid-Menon
(they/them)
They are an internationally acclaimed writer, performer, and public speaker. You can head to their website and purchase a donation copy of their book 'Beyond the Gender Binary'.
Jonathan Van Ness
(they/he/she)
They are best known for being the star hairstylist on the show 'Queer Eye' on Netflix. They also have a podcast called: "Getting Curious"; check out this episode to learn more about existing beyond the gender binary.
Mauree Turner
(they/them)
They are the first publicly non-binary U.S. state lawmaker and the first Muslim member of the Oklahoma Legislature. They are a Representative for Oklahoma's 88th House District. You can learn more about them here.