Well, 4 different kinds that's enough I think. I really like the gouldian and the society because they are quieter, the canary sings nicely, the conure expects me to give her a piece of walnut every morning and the cockatiel says a few words, they all have something that makes me like them. Just to pick one, society finches. What color are your guineas? I have 5 pearl, 1 lavender and 1 dun dot brown