;-) https://www.tunepat.com/spotify-music-converter.html (no need to install Spotify client)
https://www.sidify.com/spotify-windows/drm-music-converter.html (Spotify client needed)
https://github.com/ritiek/spotify-downloader (by searching YouTube for song name - python req)
https://www.ondesoft.com/spotify-converter-for-windows/ (no tested)
https://imusic.aimersoft.com/ (YouTube, Spotify, Pandora, last.fm, Vimeo, Dailymotion, Facebook, VEVO - no tested)
https://alltomp3.org/ (no tested)
origin - https://www.pipiscrew.com/?p=16612 spotify-downloaders