There are multiple standalone vanities that fit into various bathroom themes. 

Custom countertop vanities also are a great option.  We prefer the look of this because it provides a more permanent feel to your bathroom, as it looks like it was built-in to the home.  The countertops are custom fitted to your area so that counter space is maximized, allowing for more storage and utility. 

Amongst built-in countertops, there are several choices in the material as well.  The most common options for bathroom countertops are quartz, granite, and quartzite.  See our countertops section in our kitchen remodeling page to understand the differences between these types of material.