Century School is a serif font. It goes well with Proxima Nova, Open Sans and Avenir. If you're thinking about using Century School then try 32px for headers. Give 16px a shot for content.
People commonly tag it as
agency, design, portfolio, ecommerce, shopping, home, classic, profile and quote.
You can get it from
Fonts.com, Fontspring, MyFonts, Webtype and YouWorkForThem.