You might have better luck posting to r/gamedev Narrative designers are rare. Most of the ones that work with us at InXile are individuals who are published/working authors. If you want to stalk InXile vets, look for George Ziets to start.
Thank you very much for your response! I have indeed already asked this on /r/gamedev - I was just hoping to cast a wide net to get some answers. Are there any other game dev-focused websites that would also be a good idea to ask the question to?