None are exact clones, but they avoid legal issues.
Disclaimer: This article provides information on where to find fonts. Please ensure you check the license of any font you download. If you are using the font for commercial purposes (logos, merchandise, websites), you should purchase a license from the official foundry. optima black font free download
Nunito is a well-balanced sans-serif typeface with rounded strokes that shares a similar softness to Optima. While slightly more geometric, it is a fantastic free alternative available on Google Fonts. None are exact clones, but they avoid legal issues
You can try searching for "Optima" on Google Fonts (fonts.google.com). Although they might not have the exact "black" version, you can find similar fonts or variations, like Optima Regular or Optima Medium, which are available for free. If you are using the font for commercial
I have personally seen free font sites serve EXE files disguised as fonts — dangerous on Windows/macOS.