What babies should i add

i’m obviously trying to do a rainbow, and wanted to know what blue,green, and red sonny’s you think would look good in my collection? (i have 2 in the mail that will complete the bottom row) and i think i wanna add the halloween pumpkin robby to the top middle so that i have robby’s in the center all the way up!!

Pleaseee help me 😭😂