Bottom Logan + Bandit Camp (or at least Barrel and friend revisiting their first meeting)
Satyr + random person. You could save the random person and/or take revenge on the Satyr. Or you could just join the Satyr. Random person could be Everett on his way to meet Gunnar.
Troublemaker + Drunkard up in the watchtower. You could just watch or make make yourself known and direct the scene, or join in.
Meeting those guys from Country Road quest, either in the Tavern or public. The hole at Ste's is too far and random.
Would Dulrig and Ruben be too weird?