Local or imported KOI
Local or island-born koi are less expensive than their imported counterparts. If you do not want your koi to reach sizes of 30 to 36 inchs, you can go for patterned local koi. I recommend islandborn koi for complete beginners.
We have around two major legit imported koi sellers and based on my experience, their quality is assured. Be careful when buying imported koi from a nonreputable seller.