Нашёл 25 млн ответов for 'Mp3 converter'.
https://ytmp3.cc/
https://www.y2mate.com/en30/youtube-mp3
https://www.y2mate.com/en30/convert-youtube
https://convertio.co/mp3-converter/
https://www.easymp3converter.com/
https://320ytmp3.com/
https://youtubetomp3music.com/
https://mp3-youtube.download/
https://convert2mp3.club/en/
https://audio.online-convert.com/convert-to-mp3