The easiest way to listen is through official channels. While Freddie Dredd may not always release "slowed" versions officially, many fan-made edits are available on: SoundCloud: The hub for Phonk remixes and slowed edits.
Tell Em X Killin On Demand Slowed MP3 Download: The Ultimate Guide to the Viral Phonk Aesthetic tell em x killin on demand slowed mp3 download
Look for "320kbps" options to ensure the bass doesn't sound muddy. Remember that these downloads are for personal use only. The Impact of Phonk on Digital Culture The easiest way to listen is through official channels
Spotify: Many producers upload "Phonk" playlists that include similar slowed-down tracks. Using YouTube to MP3 Converters tell em x killin on demand slowed mp3 download
If you provide those details, I can point you toward the most popular community links!