Like many i adopted the official assignment from world link because thats like. essentially what mafuyu's mind thinks niigo are and i think thats really cute. But other than that being my main one i am just generally open and interested in other animals because assigning different species/morphs is a lot of fun (see: the two times i drew niigo as different rabbit breeds). some of my favorite random assignments are clione, mole, bat knd; wolf, moth, sea bunny mfy; deer, pink cockatoo, pangolin mzk; owl, squirrel, chinchilla ena. this is is just from the top of my head though so im likely forgetting some that I also like a lot