I found on a previous post on this site a place in LA called Jeff's Gourmet that has several interesting sausages, including smoked chicken apple and chicken cilantro, among others. Anybody know of places in Brooklyn, Manhatten, even the 5 Towns, that has something like this? (We keep a strictly kosher home, so while I know this board isn't about what is kosher, we need a reliable hechsher).
May not work geographically for you, but:
Woodbury Kosher, in Hicksville (on the Plainview border - next door to Bagel Boss) has delicious homemade sausage. i've only had the hot kind. I assume it's beef, but haven't asked. I also don't know what other varieties they have -- I tried the hot sausage once and since then always need to have a package in my freezer.
Woodbury Kosher Meats & Catering
428 S Oyster Bay Rd, Hicksville, NY
Neshama sells a decidedly more limited variety of sausages at retail markets -- some are turkey/chicken but they also have a decent glatt merguez sausage. Neshama's chicken/apple is very good as are most of thei other varieties. Their web site says they're available at King's, Wegman's and Whole Foods on the East Coast.