I find it kind of hard to believe that this place doesn't have a thread yet and it certainly deserves one. Snaggletooth is a small lunch counter service spot that specializes in house-cured fish. There are a few seats in the window downstairs and an upstairs seating area that might accommodate 20 people (I didn't actually go upstairs).
I dined in with a friend and we each ordered The Complete Tasting, which was slightly less than 20 dollars (and the most expensive thing on the menu). It included about six different cured fish, a bagel of your choosing and whatever shmears you might like. As I recall, we had kimchi, tomato, meyer lemon, OG scallion and a few more shmears. All were quite good and their subtle flavors never overpowered the fish. Fish included pastrami trout, smoked sturgeon, lime hamachi, gravlax trout, a salmon and maybe one other. We watched the fish being carefully placed on a serving board and the presentation was really excellent. All of the fish was very good, and you could really feel the care and effort being put into the product. This place has GNR written all over it.
Here's a link to their website -
http://snaggletoothchicago.com/Fish is also sold by the 1/4 pound to go. If you'd like to place a takeout order, I would suggest calling in advance.
Snaggletooth
2819 N. Southport
773-899-4711