Small sounds, big detail
Paper is quiet, but close up it is rich in texture: a page turning, a sheet crumpling into a ball, a tear, a pen scratching. Film and game sound designers use these to make on-screen actions believable, podcast producers to add life to a scene, and ASMR creators for the sounds themselves.
Using paper sounds
Because they are recorded close and quiet, paper recordings often carry room noise and handling sounds. A gentle noise reduction or gate cleans them up. In music, try them as replacements for hi-hats and shakers, or layer a crumple with a snare for grit.
Paper foley is a favourite of hobbyist recordists, so the free libraries have plenty, often CC0. Each card shows the licence verdict.