Brawnpits

A Small Problem
While searching for Brawnpits, he actually ends up finding you near the waterfall:
 * Brawnpits:

House Phiarlan Enclave
After being rescued by you, Brawnpits can be seen at the Livewood Threater, playing as the Stormreaver, in the place of Arganon.

Ruins of Gianthold
Brawnpits can be found randomly in the epic version of the Ruins of Gianthold while looking for giant relics. He bestows the random encounter A Smaller Problem.

The Fall of Truth
Brawpits can be found dancing around the Stormreaver at the start.

Gianthold
After you destroy the Truthful One, you can complete the raid talking to him:
 * Brawnpits:

After completing the raid and getting the reward, if you talk to him again, he will say:
 * Brawnpits: