There are lots of choices for these. See the following FAQ (the thread title says Hue, but it applies to any smart bulbs)
The good news is that any switch or button that works be smartthings can be used to control the bulb but without actually cutting the current to it. The switch sends a message to the hub and the hub sends a message to the bulb. And there are quite a few device options to choose from. See the following thread for a list of possible devices: