The Cooper 9500 is one of the most popular choices, as it looks just like a regular switch.
There are lots of other options:
Or you can also use a $20 wifi no contract phone and use SmartTiles (.a very popular 3rd party customizable dashboard for SmartThings that runs in any web browser)
www.smarttiles.click
By the way, the distinction you were trying to draw is between a “load controlling” switch, which controls the amount of current sent to the light, and one that works just as a “remote” or “wireless controller.” The wireless controller may be wired into mains power on a different circuit, or be battery operated.