Architect has a selection of fonts built in, and we also have a Custom Type widget that will allow you to include the complete Google font library, as well as Typekit fonts. You can set your font style and size, site-wide within the Global Text section, or customize specific sections of the site.
There is an extensive list of fonts available right in Architect. To view these, click on the relevant text block; this will open up the text editor and select the font section.
Visit our Custom Type widget documentation for more information on adding Google fonts or Typekit fonts.