The answer essentially comes down to your storage requirements. Consider how much storage you want in the drawer. If the purpose of having a drawer for you is to add as much storage space you can, look for a tall and wide drawer cabinet with five or six drawers. Then there are chests that feature twice as many drawers but are not wider. These chests use drawers that are split in half at the centre. The purpose of this is to let you organise your things better. But always make sure that you have enough space in your room for such a drawer.