Fallout 76 consists of a variety of completely different sorts of Power Armor. You can use this guide to find Fallout 76 Acculturate, X-01, Prototype T-60, X-01, T51b, T45, Excavator & Raider.
For the Excavator power armor, consult with this guide to get your arms on it as early as you may. For the remaining, by randomly scavenging the wasteland, they’re tied right into a pursuit and received’t be discovered.
Falloutt 76 Ultracite, Excavator And X-01 Power Armor Location