Maybe - but Substack is pretty big, do they algorithmically ban? I didn't find anything saying specifically that they didn't. I guess it's not too big of a problem if I get banned and it's the only content I have there, but I would have wasted time.
I think substack is a safe bet for your case, the only prohibition is on porn and credible threats, and promoting illegal activities. See their content guidelines [0] and a blog on their philosophy of hands-off moderation, letting readers choose who they follow [1]. They don't algorithmically recommend articles, so they don't have to place the same filters and automated "shadow banning" that other platforms perform.
