I'd honestly kinda want a duergar companion as well - while I'd just take any dwarf fighter I really like the idea of a surly duergar fighter or paladin accompanying us, just so I can have another option for a dedicated frontline tank aside from Lae'zel who... well, I killed her with the tiefling scenario thinking I could rez her. Couldn't. And really didn't feel a major loss with her death.
