See if the R-115S meets your needs. Not sure if that is still available.... There is also a RC-120S, but behaves a bit differently.
Some forums say they replace the 115 with the 115S but has slightly different mounting.
Places like Digikey say the product is discontinued, so you may have to shop online at other "stores"
EDIT: One site recommends replacing those units with touch-plate low voltage switches:
Buy Touch Plate low voltage powered relay pack to replace Remcon relays or as a single location light power supply. Find new replacement wall plates, relays & wiring guides for your older home. In stock at Kyle Switch Plates, your low volt experts.
I think you would get better answers if you gave more information on what the relay is being used for. For example what current and voltage is the output switching, what voltage and current is available to drive the coil of the relay. Are there any special safety requirements such as use on medical equipment. I did think of suggesting a solid state relay but you have not provided enough information to know if it would meet your requirements and to provide the part number of a specific device.