Florian Karsten runs an independent foundry selling families like FK Grotesk, FK Roman Standard, and FK Raster Grotesk, mostly priced 40 to 60 euros.
Two of the typefaces, Space Grotesk and Montagu Slab, are released as genuinely open-source, which is unusual for a foundry whose main business is selling fonts.
Go here directly if you already want Space Grotesk (it's become a popular UI and product default) rather than discovering it through Google Fonts.
Most of the catalog is paid with trial versions available for testing; Space Grotesk and Montagu Slab specifically are open-source and free for commercial use, but that doesn't extend to the rest of the lineup.
Independent type foundry publishing high quality retail and custom typefaces.
