sudo du -a /var | sort -n -r | head -n 10
2354364 /var
1445712 /var/lib
646320  /var/lib/snapd
581000  /var/lib/squeezeboxserver
580848  /var/lib/squeezeboxserver/cache
478268  /var/log
466928  /var/log/journal
466924  /var/log/journal/94f59c04fb2b43389830df71daf79189
451756  /var/lib/snapd/snaps
416780  /var/cache