A nice touch is the flange mount relay, offering a sturdy base without needing a separate DIN rail.
General Electric 12GCX51B12A REACTANCE DISTANCE RELAY 120 VAC, 5AMP, 60 CY
With Omron, you get a relay that feels solid in the hand and quiet.
When you open it, you will find that it is the SRD-12VDC-SL-C model.