dustb0RMFinder is a utility for RPG Maker MV & MZ. It can search your entire game for the items/messages/teleports and so much more and display on which map and by which event they're called.
Useful for debugging! https://store.steampowered.com/app/2998080/RPG_Maker_MZ__RMFinder
RPG Maker MZ - RMFinder on Steam
This is useful if you want to find all instances of a healing potion in your game. Maybe you forgot where the party is supposed to find that important quest armor, or you want to check all maps where one enemy is appearing. The uses are plenty for a handy tool like this!