This might work: SYLVANIA LIGHTIFY ZigBee 2 Button Wireless Dimmer Switch, Works with SmartThings, Hub Needed for Amazon Alexa or the Google Assistant https://www.amazon.com/dp/B0196M620Y/ref=cm_sw_r_cp_apa_Jft2AbCSWS0E5

Also, if you search Amazon for Zigbee remote, a couple come up that might work. Good luck!