If anyone else has one of these (like a no frills Harmony Hub, except can send RF commands too), and if you have an android device, there is a RM Tasker plugin which can automate commands to all sorts of devices, which are not meant to be smart devices, but can be used as such (LED Candles, cheap Remote controlled LED Coloured bulbs, or almost anything with an RF remote).
Its less polished than Harmony, but can control a whole lot more gadgets... and the best bit, is the fantastic unofficial developer who created the tasker plugin, has just added an Alexa bridge to the app too!
So now, ANY device you want to control, (anything with an inrfrared remote, or RF remote along the 300mhz or 400mhz range which is most devices), shows up in the Alexa app as a Wemo device (on/off type control), and can be controlled by a command.
There are a few bugs, which are often being fixed the next day after being found. The developer is really on the ball.
I have it working, and now even my cheap £10 RF remote control plug sockets are working as promptly as a wemo device via command. Far cry from using IFTTT or Pushbullet to send commands to the Broadlink unit which I did before.
The Unit (Broadlink RM2) is about $33/£25 on ebay, so is a really low cost device, which will turn a bunch of stuff you probably already own into Echo compatible devices (and an android device lying around &some tech smarts do help!).
You would need the tasker app, and the RM LInk Tasker plugin both for android.