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
IBM Plex Mono
(IBM Plex Mono is a monospaced font designed by Mike Abbink of Bold Monday. The font is available in multiple styles, including regular, light, medium, semibold, bold, and extrabold)