Cochin
If the cage is 14 x 14 or larger, it will hold a trio
IF the cage is smaller, only a pair
Either will be cool if you want fertile eggs. If you only want pretty eggs, and no babies, then just get hens. When Its high summer there, I can send you a dozen eggs for you to hatch, if you've made an incubator. (Simple is ok)
Aquariums are also good, btw. Esp ones with cracks, but not really broken. They are good for pairs in the 10 gal. size. larger size, more birds.