To my understanding, Fox News is pretty commonly accepted as a news source that's right of center, and even they've run articles describing Gab as far right.
I know it's uncool to do political bikeshedding on HN, but if you'll indulge my curiosity for a minute, how would you describe Gab's politics if not "far right," and are there any spaces you would personally label that way?
[0] https://en.wikipedia.org/wiki/Gab_(social_network)
[1] https://www.foxnews.com/politics/social-media-platform-gabs-...
https://antisemitism.org/wp-content/uploads/2021/10/Screensh...
Which isn't some dogwhistle, inapt wording, etc. It's straight up, plain Nazi phraseology:
https://en.wikipedia.org/wiki/Jewish_Bolshevism#Nazi_Germany
Gab is well past "right wing" and well into "company replies to the complaints about antisemitism with press statements reading 'JESUS IS KING'" territory. The site's content basically parrots whatever today's Republican most extreme talking point is.
I just opened Gab's front page in an anonymous browser, and the first 3 posts were a "Let's go Brandon" joke, a salute to Hobby Lobby for defending Christian Nationalism, and a post about "Ron Johnson is a RINO because he thinks the President won the election." If you can read through this and think "this isn't far right," your perspective has been significantly influenced by whatever media you're consuming, and you need to look into deprogramming yourself.
A story about how Republican Ron Johnson is a liability because he acknowledges that Joe Biden won the last US election is currently in the top 5 on Gab's frontpage. Many similar stories are highly ranked as well. It seems quite self-evident that Gab's main audience leans conservative (in the American sense) and that conspiracy theories à "stolen election" are quite popular there. These do seem quite "far right" to me even if they might have mainstream support at the moment.
Another of your default options is "BitChute" which is a platform for similar content.