I'll smoke anything if I think it will taste good. lol. I do a lot of trout, kokanne salmon, tri tip, chicken and ribs. Havn't done any shrimp yet and the eels I save for sturgeon bait. lol
Took me a long time to get consistent with a smoker. For me the trick was getting an electric one with a thermostat. Smokers are kind of like swimbait gear, spend the money up front and only buy once.