Sorry about your loss, I feel you as similar happened to me once when a 4TB drive was destroyed with all the crown jewels on is.
Now I have 2 backups, one at home and one at family so not in my house in case of a fire, and the most important data I also have backed up by uploading it to cloud services.
There are chances that you drives could be repaired or at least data could be recovered from them as long as the plates are not destroyed, it's expensive though.
But keep the drives in case you can afford it later on to send it in to experts for advanced data recovery.
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