Anyways, others have already said it, but I'll say it again.
Substack. So long as you aren't calling for violence on others, insurrection, all that jazz; you should be fine. Besides, Mark Twain (Samuel Clemens) is tame in comparison to other authors and even philosophers that people write/talk about. Probably smarter than some of them too.
Sure, he said some words that some people today don't like, but when one considers context of the times, it should be allowable. Especially when considering things like the creative license of authors and artists.
A few things though to consider before using Substack.
1. They say your posts can be as long as you want, but due to the nature of Gmail limitations, it's essentially artificially limited by gmail. So if you want people to be able to read your entire article in their email, make sure you don't use too many large data pictures, etc stuff like that.
2. The site is constantly saving your work in the event of a power outage, or network error. The latter happens somewhat often with them, due to the nature of the beast, and of humans. When cloudflare was getting some flak over Kiwifarms a few months ago, it ended up getting some sort of attack that took down Substack somewhat as well if I understand correctly. It only lasted a few hours though, tops. So pay attention to when the network error message pops up, and stop typing till it goes away.
3. Their setup is still being worked on and added to, so if you think it looks a little bland, don't worry you are not alone. But that sort of works for it as well, as it helps keep things low cost I bet.
And
4. You can monetize through Stripe.