The echo chamber is a real problem of modern society and something I try to fight against but with little success. I don't for instance unfollow people or stop watching their videos if they give one opinion that I don't agree with. I even kept Steve Shives for ages for this principle but eventually gave up and stopped bothering when he went full SJW and blocked everyone who asked him a question.
I've been watching people on YT for a number of years and find myself losing interest in listening to people who are opinionated but don't necessarily know much about it. Very few people are willing to say 'I might be wrong about this,' or present a balanced view of both sides. Videos tend to be one-sided rants that only present their side of the evidence.
I watched Potholer for years and is one of the few YTers who has managed to keep on doing it completely drama free. I don't mind Hoff Summers and she makes some good points in a non-partisan way, like with the gender pay gap, as you say though I'm not 100% convinced that she is telling the whole story. Shapiro sounds good but again it's a very one-sided view, he came across better on The Rubin Report recently though although I still didn't agree with him. I actually follow Crowder but only for entertainment purposes, he's gone from being anti-Trump to a pro-Trump mouthpiece. I'd probably get criticised from both sides for saying this but people only listen to Lauren Southern because she's a pretty face. I really dislike Jordan Peterson, there is something about him that I distrust.
I don't really follow too many on the left because of their obsession with identity and inability to take a difference of opinion. There are a number of issues of which there is a correct viewpoint and if you are not 100% in agreement then you are not only wrong but are borderline evil. Abortion and trans issues are two examples that come to mind.