You don’t need to download new files to improve the sound. Logic Pro offers several ways to adjust the built-in click: How do I change the sound of the click? - Logic Pro Help
While Logic Pro does not have a dedicated "metronome sound download" page, you can fully using internal tools or external sample packs. By default, Logic uses a virtual instrument called Klopfgeist . If you find its beep distracting, you can download free click samples from repositories like Pixabay or Soundsnap to create a custom click track. How to Customize the Metronome Sound logic pro metronome sound download