I don't know about formal publishing, but I'm sure this forum would be happy to host such a post. That would technically make it self-published, so unless there's some reason why you'd want a third party to publish it, I'd just go with that.
I’m writing a piece about (Public “I was wrong" admissions by intellectuals & thought leaders) that I’m planning to publish. It contains 6 people till now. Any tips on who would be interested in publishing such a piece (preferably paid)?