Looking to stay with low and slow?
How about ribs? Beef or pork?
Different beef roasts, I like tri tip, many here do a lot with chuck roasts.
Pork belly? So many things to do with this, burnt ends or a slab.
Turkey breasts, from time to time will do some turkey to mix it up.
If not only low and slow there are so many options for grilling, chicken, chops burgers, steaks, fish, shrimp, scallops...