This article includes grotesques and neo-grotesques, sans-serifs, monospaced, duospaced and even some modernist, more unusual serif, sans and display fonts. ALL fonts are 100% free for both personal and commercial use.
Although grotesques and clear-lined sans-serifs are associated the most with brutalism, used in the right combination and composition almost any typeface would be a good fit. So this article is an extensive but not exhaustive collection of the best free fonts to use in your next brutalist web project.
35+ Free fonts for brutalist websites in 2019