Are you looking for something like https://ffxiv.gamerescape.com/wiki/Main_Page or https://www.garlandtools.org ?

Gamer Escape's wiki has information about all of the items, dungeons, NPCs, etc. For items used for crafting or crafted themselves, it links to associated pages.

Garlond DB also has a lot of information about items as well! Like if you wanted to make a crafting list, or where to find the item. Garlond Bell is also a great resource for setting up gathering timers.