The list of required Allies:
Aluki
Elida
Teb
Vanesha
Uthid
Nakoa
Janeva
Petra
Sona
Vari
Namman
Erend
Talanah
Also note that this isn't missable and even if you complete the game you can go back to recruit the allies you missed. The trophy will pop when you do the last mission again :)