If you like family gameplay: Growing together and parenthood.
If you want farm life and animals Cats& Dogs and Cottage living. C&D also comes with the option to own a vet clinic and you become a vet. Cottage living is also fun for challenges with the simple living lot trait where you have to have all the proper ingredients to make the food you want.
If you want a bit of different lot options for gameplay, I'd say Dine out game pack and maybe city living. I think City living gives the karaoke bar lot type. you can also customize menus with dine out and own your own restaurant (the gameplay part is limited, i tend to just make restaurants for sims to dine at)