Top choice is the Primary Magenta. Add Cool and Warm reds to your pallet as you grow and experiment.
Cyan or Cobalt
Top choice here is Cyan. I would play with adding a few especially if you don't use black I would add a Phthalo Blue.
Lemon Yellow (cool)
Top Choice is Lemon yellow. I love Cad for orange so if you see brilliant orange in the design this is a nice addition.