Free Serif Bold, from the Free Software Foundation, is a free old-style serif font with the easy gravity of a bookish classic. The letters pair broad, softly bracketed serifs with generous curves and a sturdy weight, so the texture feels literary rather than sharp or severe.
It fits naturally in editorial headlines, essay titles, book covers, magazine decks, posters, and formal invitations where you want tradition without fuss. As a free font, it also works well for title cards and short pull quotes, since the bold serif rhythm gives even a few words a settled, familiar presence.