find $HOME/Library/Caches/com.spotify.client/Data -type f -name "*.*" -size +1k -exec echo {} \; -exec rm -rf {} \;

usefully tool “ncdu” for all disk space.

#other way verbose rm -rfv

also you can add on cronjob

➜  ~ crontab -l
#forspotify
MAILTO="mail@tuncayuysal.com"
0 22 * * 1-5 find $HOME/Library/Caches/com.spotify.client/Data -type f -name "*.*" -size +1k -exec echo {} \; -exec rm -rf {} \; > 1>/dev/null