If you want to speak freely, don't expect to do it on somebody else's platform. Even if you aren't subject to censorship at the hands of the admins or moderators, you might still run afoul of the prevailing groupthink.
Here's what you should do if you're serious about free speech online: Start your own website. Run it under a pseudonym. Host it on Nearly Free Speech. Ignore all SEO advice, and disallow all crawlers in robots.txt. You might not get any human readers, but you aren't likely to get censored.
Otherwise, posting on 4chan is an option if you don't mind having racial or homophobic slurs hurled at you by poorly socialized adolescents who think too highly of themselves. And there's always Substack; if they can tolerate avowed neo-Nazis like Richard Spencer and white supremacists like Richard Hanania, they can probably tolerate you.
Just remember that if you frequent a Nazi bar like Substack or X, people will assume that you're a Nazi.
