Well, to aim for a different type of family go
here
Or if you want to get different characters it really depends on the care you give them.
Make sure you concentrate on it bonding percent.
The items it plays with.
The care you are giving it.
There are different area's where this can lead too, if you don't feed them enough, they can go to the
small family If you are neglecting them too much and they aren't happy, they will either die or end up being the
ninja familyOr if you feed them too much then they will end up as the
large family
Then there is the four special families, which are explained in the link, Also the space family!
Hoped I helped!