Allies
Bronze Dragon Wyrmling (CR 2) (A fight that begins with an ambush attack, but can become an alliance)
Young Bronze Dragon (CR 8) (A non-combat alliance)
Helpful
Neutral Parties
Copper Dragon Wyrmling (CR 1) negotiation
Ancient Brass Dragon (CR 20) (Roleplaying a King)
Young Brass Dragon (CR 6) (Battle of deceptions)
Trickery
Negotiation
Quest Giver
Quest for an Evil Dragon (Evil Quest Giver)
Bullywug (CR 1/4) A quick guide to building a quest that passes through the territory of a monster type—without making them the villain or the quest giver.
Deception
Hostage
Escort Quest
Bone Devil (CR 9) Escorting a large group to safety