Well if your lumping in seafood, here is a short list of what I've smoked:
Shrimp, prawns, crawdads, rockfish, halibut, tuna, salmon, trout, catfish, tilapia, walleye, scallops, eel, herring, shark, oysters, clams, crab, lobsta, urchin. Probably some more that I am forgetting.
Pork:
Pork Tenderloin, Sirloin Pork Chop, Sirloin Pork Roast, New York Pork Chop, Porterhouse Chop, Ribeye Pork Chop, Pork Loin Roast
Poultry:
Extra lean: Breasts (chicken/turkey)
Lean:Boneless Skinless Chicken Thighs, Ground Chicken, Ground Turkey
Beef:
Ground beef can be lean or extra lean depending on your fat ratio.
Extra lean: Eye round, sirloin tip side steak, top round roast and steak, bottom round roast and steak, and top sirloin steak
Lean: Brisket, round top roast and steak, round steak, shank cross cut, chuck shoulder pot roast, sirloin tip center roast and steak, chuck shoulder steak and bottom round steak, top loin steak, shoulder petite medallions, flank steak, shoulder center steak, tri-tip roast and steak, tenderloin roast and steak, and T-bone steak
Bison. We have a local rancher that raises and sells it.
Wild game. Elk, deer, Moose