I created a Virtual Switch Universal Device specifically for Alexa and IFTTT integrations. If the Alexa devices can be used as Triggers, then you can use Alex Routines to control your Hubitat Virtual Switch, and you can use the Hubitat Virtual Switch to control the Alexa Devices if they have Actions. in Alexa Routines. If the Alexa devices don't have Triggers or Actions in Alexa Routines or available as an IFTTT service then you are probably SOL. Contact Amazon and request either the device to be available in Alexa Routines or available as an IFTTT service.