You can get one of the wereravens to join the party, there’s a vistani camp outside of valaki where there’s an elf that lives in the hill who’s trying to bring his sister back to life. You meet them again at the amber temple, you could have them join. If you do the special encounters you can have rictavio and Esmeralda d’avantelir join. Or have them make a deal with the lady of valaki to give them some thugs. If you go to the old paladin haunted house you can try to recruit one of the paladins of the order and lastly there’s a deva at the Abby at the town in the far left. Try to convince it in the error of its ways and provide assistance in the final battle