Workshop

But somehow, the fantasy templates for these people hadn't fully formed in my mind yet.

Yes, that's the main problem – it's easier to dig up old-timers who have even forgotten about the forum but are still stuck in my memory than to find something on active newcomers who are no longer quite newcomers and have already settled in, but haven't yet developed their own mythology.
For Sesham and Shaman, you can find something from the NC or contests; remind Yaschur of his dislike for your mod kills; Master... I don't know.