The one most people use is linked to in the FAQ on this process that was linked to up thread. There are some other details in that FAQ that might also be helpful during this process. Here’s the link to the FAQ again.
(We do have some community members who have difficulty following links for one reason or another, so if that applies to you, just let us know, and we can give you posts with direct links. Otherwise, the FAQs will usually have whatever you need, that’s why they’re there. . )
IF YOU HAVE AN ANDROID PHONE, YOU CAN USE LABS
Also, if you are using an android phone, you can go into “labs” in the smartthings app and in the US and the UK there will be an option there to create a virtual switch for Alexa. But it’s not available in the iPhone version.
THE LINKS FROM THE ECHO ROUTINES FAQ
Here’s the link for the Groovy DTH. (The topic title is the clickable link.)
Or if you like, there’s an edge driver you can use.
. )