It depends on what sort of tone and what ukulele "feel" (neck thickness, fretboard width, radiused or flat fretboard, etc.) you prefer, but in your price range I would suggest the following:
-- A used custom that you get to play before buying (for example, you might be able to buy a plainer Mya-Moe used at a price like that) or a Kamaka baritone.
-- Kamaka. I have a few baritones and recently started playing baritone in my Wednesday evening ukulele class whenever it performs, and I love the sound and feel of my Kamaka baritone. Kamaka baritones sell new for $1,495. Gryphon Stringed Instruments in Palo Alto has a 2013 Kamaka baritone for $1,150 and a 2003 Kamaka baritone for $1,125.
https://shop.gryphonstrings.com/products?utf8=%E2%9C%93&view=&taxonomy=instruments&grid=grid&sort=up&price_sort=down&type=instruments&filter%5Binstrument%5D=115531&filter%5Btaxon_second_children%5D=116941
Kamakas are production ukes and while they're all well made, there are variances from one to another, so if you can, play one first, or at least listen to a sound sample, or get a full refund return guarantee.
-- Kanile'a. Kanile'as are wonderful instruments and have a sound I like as much as Kamaka's sound. I find, however, that the fretboard is a little wider than I like it, which is the only reason I don't own a Kanile'a instrument. Depending on the model K-1, K-2, K-3, or K-4), Kanile'as sell from between approximately $1,000 - $2,600.
http://kanileaukulele.com/k-2_baritone.php?osCsid=99900289ee6c0f96491673c592d97af0
-- Pono. When I had a Pono baritone (my first) they were not very expensive and although they were well made, they didn't compare with higher end baritones. Pono now has a higher end line that I hear are wonderful instruments that sell for prices up to just below your minimum, aroudn $800-$1,000. They're incredible values, though, and I've been told that they sound as good as their more expensive rivals. Ponos' necks are thick (measured from the fretboard to the back of the neck), and you should play one first to see if a thick neck is comfortable for you.
It would help, in getting advice about your purchase, for you to determine and articulate what you're looking for in a baritone ukulele. In your price range, there are baritones with different choices (I can tell the difference between, for example, a Kamaka and a Mya-Moe by ear) and what physical features, like neck thickness and fredboard width) you prefer. UIf you live near a store that sells ukuleles, go there and play all the baritones they have, regardless of the price, to develop a feel for similarities and differences. Good luck and be sure to post what you decide!