I like a lot of different ones, we have tons of Mollies in all of our lakes here I like them too. I have 4 silver Dollar fish (2 males , 2 females) and an Angel in a 35 gallon tank.
koi are one of my favorite types. Especially the "Kumonryu", its black and white. I have a "butterfly Utsuri" koi and 3 Comets in my pond.
Check out some of the prices of these Koi