Look for something that is out there that you like and try and find something similar.
Fry are a gamble sometimes not knowing where they originally come from or what they have been put through to make it to your tank.
I look for either a for sure male unless i am looking for breeders.
Look for color, finnage and activity and you are sure to get a fish you will really like.
They change constantly untill they are about 2 so put some time in and don't give up