This mod contains the complete list of all existing & createable objects from GTA V, up to the latest available DLC (Cayo Perico Heist / Online 1.52 / Build 2189 / mpheist4 DLC).

It contains 16663 objects in total, latest version is always available on my repo (including a lot of other useful GTA V data dumps, lists and more):
GTA V data dumps on GitHub

Requirements:
Map Editor Mod by Guadmaz
Object Spawn Unlocker

Installation:
Automatic Installation:
Open the OIV file in OpenIV, install this into the game folder

Manual Installation:
Open your GTA V directory, from there open the "scripts" folder, then drag and drop the ObjectList.ini that's provided in the "manual install" folder into your "scripts" folder.

Support
You can ask questions related to this mod on my discord at: Discord invite

All GTA 5 objects for modding
You can find all existing GTA 5 objects / props on my GTA 5 data browser at: Pleb Masters: Forge