That looks like a standard three gang US switch. So again, you should be able to select single switches that work with SmartThings and just put three of them in the box with a three gang cover plate. Just read the instructions carefully, in some cases you have to remove the heat sink side tabs from the switches to get everything to fit, which reduces the total load that they can carry.
If you want a toggle switch, GE has one that should work:
https://byjasco.com/products/ge-enbrighten-z-wave-plus-smart-switch-quickfit-and-simplewire-toggle
@TheSmartestHouse May also have one in their Zooz line, I’m not sure.