I could find lots of equivalent parts, but none with that odd footprint.
I still like the idea of glueing a relay upside down in the same spot and running wires down to the board. A swab of contact cement and it won't be going anywhere.
It is a speaker relay, not a small signal type. A power relay if you prefer. The contacts don't handle a lot of voltage - whatever the high rails are - but the current can be several amps.
Beyond that most any 24v relay should work as long as its coil doesn't over tax Q207.
I don't know who the Taiko people are, but try to find them. Googling the part number got me nowhere. I sincerely doubt it was a custom part.