Examples of websites using
Neue Haas Unica
('Neue Haas Unica' is a Sans Serif font designed by Toshi Omagari and released by Linotype in 2014. This font family consists of multiple styles, including regular, light, bold, and italic variants)
with
Open Sans
(Open Sans is a sans-serif font designed by Steve Matteson. It offers a wide range of styles, including regular, italic, bold, bold italic, and light)