Examples of websites using
Avenir
(Avenir is a sans-serif font designed by Adrian Frutiger and Nadine Chahine, released by Linotype in 1988. It features clean and modern letterforms and is available in multiple weights and styles)
with
Signifier
(Signifier is a serif font designed by Kris Sowersby and released by Klim Type Foundry. It is a complete overhaul of the original Signifier family, featuring improvements in weight distribution and curve quality. This font family is available in a range of weights and styles, including normal, narrow, condensed, and compressed widths)