What kind of combos do you like? Do you like darker morphs? Lighter morphs? Patterned morphs? patternless ect ect.
A good basis is getting a few single gene females and multi gene males.
So a mojave and black pastel female are always good to start with.
A super pastel lesser or something is a good starter male.
Recessive projects are always great. I'm a fan of clown and hypo combos. So maybe get morph hets too.