Below is a central list of authors whose enneatype I’m fairly certain of (say, 75% +). This post may be periodically updated or amended.
The list is unfortunately going to be based on what I’ve read, hence idiosyncratic, and naturally to some extent which of those have types that are relatively discernable – list length doesn’t necessarily suggest anything about frequency of types in the author population. Occasionally major works are noted e.g. where multiple authors may have the same name, or where some literary work is IMHO particularly significant.
Misidentifications may be possible based on proportion or which type really has priority – e.g. 4w3/3w4 seems particularly difficult (hypothetically, these have the same ‘set’ of functions, just in a different order – with writing tending to draw off the ‘4’ side). These are noted [inv?] for possible type/wing inversion.
A [w?] indicates wing is somewhat uncertain, while if a totally different second type is possible, that type is noted in parentheses. The author is listed under most likely type/wing. Confirmation of a ‘wing’ helps verify the main type – so a [w?] also means a higher chance the primary type is incorrect.
An * means the author has a ‘case study’ article as an example of the type. These articles may discuss similarities with similar authors (same type/wing).
1w9: Ayn Rand, Philip E. High*, Keith Laumer, Bob Shaw, C.S. Lewis, Damon Knight [w?], Colin Kapp [w?], Alfred Bester [w?], John Varley (?).
1w2: Anne McCaffrey, Mercedes Lackey, Terry Goodkind, C.L.Moore, John Grant (Lone Wolf author), William Barton, Gael Baudino, Harlan Ellison [w?], Scott Baker*.
2w1: Danielle Steel, Piers Anthony, Geoff Ryman, Octavia E. Butler, Claudia J. Edwards, James White?, Anne Maxwell [e.g Fire Dancer].
2w3: Louise Cooper*, Lin Carter [or 7?], William Goldman (Princess Bride), Catherine Cooke [The Winged Assassin], Mario Puzo [The Godfather], Stephanie Meyer (Twilight)(6?).
3w2: E.E. “Doc” Smith*, William Shatner, J.K.Rowling, David R. Palmer [Threshold]*, L. Ron Hubbard [w?]. Movies: Aladdin.
3w4: Jack Vance, Roger Zelazny, Herbert D. Kastle, Michael Ende*, Terrence Dicks.
4w3: Tanith Lee, Virginia Woolf [w?], Janny Wurts, Oscar Wilde, Stephen Brust [inv?], Brent Weeks [or 8w9?], Clark Ashton-Smith* – http://www.eldritchdark.com/writings/short-stories/ , Ian Irvine [w?], Karl Edward Wagner [w?], K W Jeter [w?], Barrington J. Bailey [Fourth Way student, non-type-specific concepts in books][w?].
4w5: Ray Bradbury, Vonda N. McIntyre, Ursula K. Le Guin, Kurt Vonnegut [w?], Julian May [inv?], Donald Moffitt*, Kafka (…not 5w4 as Riso proposed), Hugh Cook [NZ author – http://www.hughcook.kiwi.nz/succubus/index.html ], BBC’s director Terry Nation (Blake’s Seven director).
5w4: John Brunner*, Edmond Hamilton, William Gibson, Charles Yu, Scott Adams [“Dilbert” cartoonist], Stanley G. Weinbaum*. Movies with significant 5/4 influence: Highlander.
5w6: Isaac Asimov, Larry Niven, Arthur C. Clarke, Rosemary Kirstein, Jacques Futrelle, Richard L. Tierney, H. P. Lovecraft [inv?], Lyndon Hardy, Diane Duane.
6w5: C. J. Cherryth, Maurice Gee, Tim Powers, Jack Williamson, Philip K. Dick*, John Wyndham, Fredric Brown, Brandon Sanderson, Ben Elton.
[Movie directors J.J.Abrams (Lost, The Force Awakens) and M. Night Shyamalan (The Sixth Sense, The Village, Unbreakable) would also be 6w5s, with clear Ni/Fe pattern- Ni evident in ‘the twist’ in the second case).
6w7: Dave Duncan, Edgar Rice Burroughs, Michael Moorcock, Gordon R. Dickson, Douglas Hill; Stephen King (?), Gary Larson (Far Side cartoonist); director James Cameron*.
7w6: Patricia Bernard, Alan Dean Foster, Michael Coney, Greg Costikyan, Robert L. Forward, Ed Greenwood, Cordwainer Smith [w?], A.E. Van Vogt, Terry Pratchett*, Graham Masterton; Star Trek creator Gene Roddenbury. A.R. Orage*
7w8: Ian Fleming, Roald Dahl, Mike McQuay, Robin Klein, Michael Shea [Nifft]
8w7: Robert Heinlein*, Robert Adams, Philip Jose Farmer, Gurdjieff, Chelsea Quinn Yarbro, Robert Asprin [?]
8w9: Robert E. Howard*, Harry Harrison, Poul Anderson, Alan Duff, Melanie Rawn.
9w8: Robert Silverberg*, Robert Jordan, Carole Nelson Douglas, Jack L. Chalker.
9w1: Lawrence Watt-Evans, Clifford D. Simak*. H.G.Wells ? [w?]