FontPair

Font Pair is a typography site dedicated to helping creators use beautiful typography for their creative projects.

TRL's Editor's Note:

This is how FontPair works:

They aggregate font pair suggestions from around the web and also take suggestions through their submissions page.

You can either scroll down the page checking the different combinations of fonts they've chosen for you, or you can choose from the handy menu in the top navigation to choose by Sans-Serif/Serif, Sans-Serif/Sans-Serif, Sans-Serif/Monospace etc.

When you find a pair that you like, all you need to do is click on "Download Font Pair" and it will download the font files on to your computer. Then you can install them ready to start using them.

FontPair uses all Google fonts so you have no issue using them for commercial or personal projects.

They have written a handy article about how to install Google fonts which you can read here.

They also have a great Typography resources page.