Most font finders just tell you the name. Font Squirrel tells you the name AND gives you a download link for a free, commercial-use equivalent.
Here are a few options for a post about the Font Squirrel Matcherator, tailored to different platforms. fontsquirrel matcherator
The tool applies:
The engine scans the glyphs and compares them against their massive database of free-to-use fonts. Most font finders just tell you the name