Pacifica Foundation owns stations in a few markets. But the Pacifica Network offers programming to community stations nationally:
https://pacificanetwork.org/missionandgoals/
This is the programming the Foundation put on WBAI during the period when they shut down local programming. Of course, the network stations are smaller and have less audience than NPR stations. But there is more to Pacifica than the five stations it owns.
I'm familiar with that. But the distribution is more on a program basis that a format basis.
I can't think of any stations that carry the Pacifica Network shows that use more than a few hours of them, as opposed to the considerable and dominant content of NPR on its affiliated stations. But, as a caveat, I'll mention that I don't follow Pacifica closely as it is so shallow in listenership that it's just not of interest any more.
I do have two, er, three anecdotes that may to some extent jade my feeling about Pacifica: First, many years ago I was in the station vehicle we used to access the Mt Wilson KLVE transmitter (I was Chief Operator several times during transitions between engineers) and on the way back from a mountain expedition, we stopped at a favorite Chinese restaurant that was next to the Pacifica LA studios and offices. I parked in the street at a normal metered location which was, coincidentally, in front of KPFK.
When I came out of the restaurant, a person in the KPFK parking lot came up and ranted to me about driving a big fuel consuming and polluting vehicle; he screamed so insanely and loudly I could not respond so I just drove off. But I got a pretty good idea about the obsessive perspective of at least some of the staff.
In another case, I was scanning the dial and came across Spanish on KPFK. It was a show hosted by two Central Americans and they were vividly advocating the armed assassination of the elected presidents of Honduras and El Salvador. And I do not mean "opposition". I mean "shooting to death".
That gave me some perspective of how Pacifica would allow rather extreme perspectives including those that were violent and anti-social. There is a Spanish saying, "tell me who you travel with and I'll tell you who you are". Well, Pacifica associated with people calling for murder and assassination. That is who they were.
And finally, at one point Pacifica wanted to do a repeater on 107.5 in northern San Diego County where the LA signal was bad due to terrain. I put together an opposition, based on signed notes from KLVE listeners in that area, indicating that use of 107.5 would deprive an area with minimal Spanish language service of one good signal.
I got a call from someone at Pacifica when we filed, and most of the language was not repeatable. About the nicest thing I was called was a "repressive capitalist". One thing I had learned from years of talk radio programming was to not argue... just acknowledge. After several minutes of insults and not real response from me, the guy just hung up with a few final profanities.
And in 61 years in broadcasting, I have never had anything even comparable come from another local station anywhere.