let's see if i remember the rsync command i use for backing up my raspi. haven't done this in 2 years (well overdue!!!)
i remembered -aHAX but i found the rest of the command in a backup:
cd /media/chibi/backup && sudo rsync -aHAX --info=progress2 --no-i-r --delete{,-delay,-excluded} /* backup-name-goes-here --exclude={/dev/\*,/proc/\*,/sys/\*,/tmp/\*,/run/\*,/mnt/\*,/media/\*,/lost+found}
--no-i-r is something i found recently that stops progress2 from saying 95% all the time