Before we get into all the best bottles you can buy, let's break down the different kinds of rum and what they're best used for, whether that be sipping or as a base for rum cocktails. Gold RumWhile rum is aged, usually in oak barrels, it takes on different colors. This rum is best used in cocktails that want a more noticeable rum taste or in baking recipes like rum cake. Dark RumDark rum is aged the longest of all the types of rum. Spiced RumSpiced rums are aged for around the same time as dark rum, but spices are added to the barrels to give them a unique taste.