FFXIV DatabasesFollow

Hi guys I've been trying to find a decent FFXIV database that has information on how to obtain different items. For example let's say I am looking for an Arcanist Arm. On the FFXIV Libra app or the database linked on this site, I am easily able to find a list of all the arms, however upon clicking on it I am unable to ascertain how to obtain said item. It would also be great to be able to check out a loot list for each dungeon/raid so I can be better prepared for gear planning. Does anyone know of such a site?