Here's an old article about Elon's supporting free speech.
From the article:
Impersonators
Kathy Griffin, comedian (suspended on Nov. 6 and reinstated on Nov. 18)
h3h3Productions (@h3h3productions), a comedy YouTube channel
Jeph Jacques (@jephjacques), cartoonist
Chris Kluwe (@chriswarcraft), former football player
Edith Frost (@edithfrost), singer-songwriter
Rich Sommer (@richsommer), actor
@EliLillyandCo, an account impersonating Eli Lilly and Company
Political accounts
Ye (formerly Kanye West) (@kanyewest), rapper
Elm Fork John Brown Gun Club (@EFJBGC), an anti-fascist gun group advocating for LGBT gun ownership
Chad Loder (@chadloder), anti-fascist activist
CrimethInc (@crimethinc), an anarchist collective
Private jet trackers
Jack Sweeney (@JxckSweeney), the owner of the private jet-tracking accounts below.
@ElonJet
@ZuccJet
@TrumpJets
Journalists
Ryan Mac (@rmac18), reporter for the New York Times
Donie O’Sullivan (@donie), reporter for CNN
Drew Harwell (@drewharwell), reporter for the Washington Post
Taylor Lorenz (@TaylorLorenz), reporter for the Washington Post
Matt Binder (@mattbinder), reporter for Mashable
Micah Lee (@micahflee), reporter for The Intercept
Steve Herman (@W7VOA), chief national correspondent for Voice of America
Aaron Rupar (@atrupar), freelance journalist
Keith Olbermann (@keitholbermann), political commentator
Linette Lopez (@lopezlinette), reporter for Business Insider
Susan Li (@SusanLiTV), reporter for Fox Business
Tony Webster (@webster), freelance journalist
(Musk reinstated most of these accounts on Dec. 17 following a Twitter poll.)
Social media promotors
Mastodon (@joinmastodon), an account promoting Mastodon (reinstated on Dec. 17)
Paul Graham (@PaulG), a venture capitalist promoting Mastodon