Meteor showers like the Perseids are not known to have ever resulted in meteorite finds.
The Perseids, originating from the comet Swift-Tuttle, consist of small particles of fragile cometary material, often largely composed of the ice that burns up upon entering Earth's atmosphere creating meteors, bright streaks of light we familiarly call shooting stars.
These particles are typically too small to survive the intense heat and pressure of atmospheric entry, thus are extremely unlikely to reach the ground as meteorites. According to the American Meteor Society and studies from the University of Arizona's Lunar and Planetary Laboratory, meteor showers primarily produce meteors, not meteorites.
Meteorites are usually remnants of larger meteoroids, often from asteroids, that can withstand atmospheric entry.
For those interested in meteorite field-collecting, focusing on known meteorite strewnfields or hunting for well documented witnessed falls of meteorites with asteroid origins will yield better results.