First step would look what can you make with current breeders and do you like the outcome?

Second step, look around on the web like world of ball pythons and pictures of breeders, look for what speaks to you.

Third step, determine how to get to the snakes you really want to see hatching!

Fourth step, acquire either through breeding/buying the ingredients needed for wanted hatched snake.

Fifth step, breed the selected male(s) and female(s) together and hope for eggs. After eggs hatch hope that wanted morph hatches and jump with joy and accomplishment.

extra step, think beyond 1 year look toward the future. Where do you want to go with your breeding project(s)?
Nobody can determine where you should go, only you can.

Bonus:
Mojave X Phantom, for purple passion is a fun one
Vanilla X fire , for vanilla creams is fun
Vanilla X Bumble bee, for bumblee bee vanilla
And either the mojave/yb pastel?/vanilla on the 2 pastel girls. depending on which outcomes you like most.