As other have noted, guilds, especially around movie and television production. The WGA, SAG-AFTRA, DGA, PGA, are some examples. There are some newspaper specif

As other have noted, guilds, especially around movie and television production. The WGA, SAG-AFTRA, DGA, PGA, are some examples. There are some newspaper specific guilds, though some of them are part of the CWA or other affiliate unions. And of course, some of those guilds have a choice in contract types, staff or freelance. The WGAE, where I was a member and part of the negotiating committee for my then-employer, had its own CBA for our “shop” — but the WGA and WGAE also have MBAs (minimum bargaining agreements) for freelancers, which is the more traditional model for entertainment guilds (though WGAE in particular has shifted a lot of its attentions to staff contracts).