I don't think any of Shapiro, Hitchens and Peterson should be group together as they are all very different IMO.
A lot of people are mentioning Chomsky and I want to push back a little. While I read Chomsky a lot in the 1990s, I don't think he really is a best representation of liberal intellectuals as he has his own issues. So here are a few more important stuff
George Lakoff - Moral Politics
Lakoff is a former Chomsky student who is the major linguistic theorist that opposes Chomsky. For the record I think Lakoff's cognitive linguistics is accurate and Chomsky's Universal Grammar is not supported by the current scientific evidence. For the record I also think Lakoff is an asshat as a person but his theories i still believe are the best in linguistics.
Stephen Pinker
Pinker in the mid 2000s was one of the biggest rock star academics I have ever seen. I've literally seen "hot girl groupies" outside a Pinker lecture talking about how hot he was (and those were Harvard students btw). He is not as relevant to the "sjw vs alt-right debates" but that is a positive IMO as that dichotomy has thrown public intellectualism into the garbage can, but Pinker is definitely worthwhile
https://www.ted.com/talks/steven_pinker_chalks_it_up_to_the_blank_slate
Slavoj Zizek
He hasn't been mentioned specifically as a counterpoint but I think Zizek is important at the moment as the most prominent neo-Marxist (or post-neo) intellectual.
Richard Rorty
For anything on post-modern philosophy I'd recommend Rorty as the go-to although he passed away a decade ago so no modern media to listen to.
https://plato.stanford.edu/entries/rorty/
Daniel Kahneman
Psychologist, Nobel Laurete in Economics and co-founder of the field of behavioral economics. Kahneman is a legend. Not sure if he qualifies as public intellectual but his ideas are worth listening to