genuinely no clue who most of these people are but they're apparently identified in the fanfiction
some discord users took their guesses

So, the first row is the cohort + Rain + Ling + Ananke
Second is Telle + Wind Flower, Noctis + Solvane and Daeron + Julius
Third row, Mordret, and... I recognize the one in the middle as Beastmaster so possibly the rest are from Song but I can't place the names

Also Let me try to guess who is who <:anime_hehe:1003944624735404102>

Lonesome howl , death singer and Seishan maybe , beastmaster , revel and moonveil

Tyris , windflower , Solvane , noctis , anvil and Daeron

Ananke , Morgan imo ,neph , Cassie , Effie , Ling , Kai in the First row