Public Sans
A free and open source neutral sans-serif typeface, released as part of version two of the design system for the US federal government.
Manrope – free sans-serif variable font
This font is a crossover of different font types: it is semi-condensed, semi-rounded, semi-geometric, semi-din, semi-grotesque. It employs minimal stoke thickness variations and a semi-closed aperture.
Related links
Inter UI font family
A nice free and open source font designed for digital interfaces:
Inter UI is a font for highly legible text on computer screens.