You can use any device which smartthings can control, so there are a lot of choices, particularly if you’re open to the idea of battery powered ones.
See the buttons FAQ. The FAQs intended only have one or two posts for anyone device. It will indicate whether it’s battery powered or mains-powered and which regions it’s available in. And there will usually be a link to a discussion thread.
Please do not post follow on questions in the FAQ as it becomes too hard to read. If you do have follow on questions about any specific device, either go to the discussion thread for that device or come back here and ask. Thanks! 
However, with quite a few of the devices you will be selecting between different scenes rather than having a press to dim function.