It goes well with Inconsolata, Majesti Banner, Adelle, Montserrat, Playfair Display, PT Serif and Arvo. If you're thinking about using Fira Sans then try
People commonly tag it as portfolio, design, simple, writing, food, agency, social, header, business and tech. You can get it from Adobe Fonts, Font Squirrel, Google Web Fonts and Typekit.
Examples Fira Sans on its own
In action 8 Fira Sans samples
