At the present time, the only EU option for in Wall sockets is one of the various micros. But you have to read the specifications very carefully, as some only intended for lighting and might only support five or 6 A. For EU in wall sockets To be safe you really need ones which will support 10 A.
I just posted this morning that light wave RF has announced a second-generation set of devices with a gateway which is intended for release October 2017.
These probably won’t have direct integration with SmartThings, but they do have an IFTTT channel/service for the first generation which you can use to turn sockets on. Based on some of the pre-release announcements for the second generation, they should have reporting back to the gateway which means they would also report if the socket were turned on physically. If they add that to their IFTTT service/channel, Then that would open up some additional smartthings integration options, but we won’t know until the devices are actually available to see what features they have.
But as of today, your only simple option is the inwall micros.