Are you trying to find the Stealth Boy in Fallout 76? How about the various Hallucigen Canisters? Well here are two convenient maps to check out they have them marked on a map with the locations to find them at.
Here are a few other post to check out since you’re in the game; Nukashine Wake-up Locations, Bobblehead Locations and Vendors Locations.
Where are the Beehive Locations in Fallout 76 - Map
Where to find a Nuka-Cola Grape in Fallout 76?
Where to find/farm Orange Mentats in Fallout 76
Where to find Common Chems in Fallout 76 - Map
Where is Vault 96 located in Fallout 76?
Where to Find the T-65 Power Armor Plans in Fallout 76?
Where to Find/Farm a Wendigo in Fallout 76?
How to get a Second Fire Breather Uniform/Outfit after Quest?