It seems like you are most interested in BELs, pieds, albinos, and combos related to those.

Depending on your budget, I'd start out with 3 females: a het or visual pied, het or visual albino, and take your pick of the "het BEL" morphs.

A year later, I'd add 3 males to match. Again depending on your budget, you can make it a little more interesting by purchasing something like a pastel lesser, rather than just a lesser for the male het BEL. Also, if you got visual pied & albino females, you could get something like spider het pied, and still have good odds on the clutch. Another alternative, if you don't mind waiting to hatch out visual pieds (or albinos), would be to just use the same male for all 3 females. Going back to the pastel lesser example, this would give you the possibility of hatching out pieds, pastel pieds, lesser pieds, and pastel lesser pieds (and the same for albinos) in your 2nd year of breeding, if you get lucky and get a male pastel lesser het pied (albino) the first year and he cooperates and grows fast and breeds young.