I recently got the i190 crafting gear for my crafting class and my old i150 crafting gear I've been using I want to convert them into materia, but they're at 84% currently and I'm looking for a quick way to get them to 100% easily and super fast.

Though I'm not sure which item will be perfect to craft and easy to get the materials as well. I got all my crafting classes to 60 so any class will do. Does anyone know what craftable item is the fastest way to spiritbond my i150 to 100%?