Playfair Display is a serif font. It goes well with Lato, Roboto, Open Sans, Muli, Montserrat, Poppins, Heebo, Work Sans, Circular and Georgia. If you're thinking about using Playfair Display then try 88px for headers. Give 34px a shot for content.
People commonly tag it as portfolio, design, agency, travel, designer, entertainment, serif, wine, ecommerce and hotel. You can get it from Font Squirrel, Google Web Fonts and Typekit.