Does Collins make acoustic baritone guitars?
When hay is now considered a pollutant, anything and everything can be considered illegal, Cheerios and serpentine belts included.
No. I just checked and I don't see them in Collings' standard line of acoustics, mandolins, ukuleles, archtops, and electric guitars. I think Taylor may be the only one of the large manufacturers and the medium-sized manufacturers that makes an acoustic baritone (in both eight- and six-string). I don't see one in Martin's offerings, but I'll bet the Custom Shop makes one. They made a tenor guitar for me a few years ago, when it was not a catalogue item.
A few years ago - given that Bill Collings started as essentially a 'one-of' custom shop - you probably could have ordered one then. I doubt that's the case now.
The addition of mandolins, ukuleles, archtops, and electric guitars is fairly new.
Collings started out trying to make modern versions of pre-WWI Martins. They've done it better than anyone else, in my opinion (and in the opinion of most). I own several Collings - as well as several Martins, both standard and Custom Shop models, that are built to pre-WWII specs, down to the bracing, type of glue, etc.
The Martins are wonderful guitars, but the Collings simply blow the Martins away (including a Martin Brazilian Rosewood D-28 Golden Era, made to pre-WWII specs) if you're looking for a pre-WII sound. They boom like cannons. If you were a flackpicker playing a Collings D2H in a bluegrass group, I sometimes joke with banjo players that a vintage Gibson Grenada would need a mic to play leads over the Collings.
Every standard Collings matches the quality of a Custom Shop Gibson, or high-end standard or Custom Shop Martin - and is above the quality of most Custom Shop Fenders I've owned.
“Does Collins make acoustic baritone guitars?”
National does. but ya gotta like resos.