I got these "Smart WiFi Outlet Plug Mini Smart Socket " from Floreon. They work well with Alexa. Once I downloaded the app, and paired these with it I just had to set it up through the Alexa app.
Note: Pairing took a little bit. Even following the directions, the app had a hard time finding them. Try a couple of times. I found that keeping it in blink mode was the problem.
Besides being functional with alexa, theyre functional with just the app. Or by simply pushing the botton on it. My onme gripe is the size. I know that these are mini versions, but you still can't put two in the same outlet set. As tech gets better, Im hopeful this will be a possibility. As of now, they cover an outlet and a half. So you have to plan on where you're using them.
All in all, these have helped the automation at home by turning the aquarium lights on and off via voice. So, its quite helpful to me.