It is extremely easy to choose a Grand Company, just choose the one you like the most! The Grand Company you choose has no bearing on anything except for the location and the cosmetics you can receive. Additionally, you can swap Grand Companies at any time, although this comes with a fee. If you have no preference based on the cosmetics offered, you can also choose based on the cities, their Grand Company, and the lore behind their establishment. We have included a small summary of the lore surrounding each of the three, as well as which city each belongs to.