I put in Help Katria the one that you find that died from falling,and she helps you as a ghost, to find the Aetherium forge, it brings up her ghost code, that won't talk and it brings up her living npc,the one that will talk to you. I player.placeatme(her code) got her then, added her with the codes,as a follower, i even gave her a upgraded version of her bow,i still have the bow too, i just added a copy for her,but its cool to have her as a follower since she helped you out, seemed kinda cruel her left there to rot, you don't she her,or even ebony warrior, when you go to sovngarde anyway.I even typed hrothmond you can look up npcs like that,and end up with some cool followers,but you could just think of them as a legendary pack, helping the dragonborn.