Examples of websites using
Helvetica
(Helvetica is a sans serif font designed by Max Miedinger, Linotype Design Studio, and released by Linotype in 1957. It is available in a wide range of styles and weights)
with
Moderat
(Moderat is a sans-serif font designed by Fabian Fohrer and Fabian Huber and released by Tightype in 2015. The family consists of 18 styles, including regular, italic, bold, and bold italic variations)