The CMF Phone 1 only has a handful of official cases and accessories, but more are expected to be released in the future. Here are a couple of ideas that would be nice to see come to fruition.https://www.notebookcheck.net/4-CMF-Phone-1-accessories-and-cases-I-d-love-to-see.860452.0.html
Missed opportunity: camera grip with shutter release and maybe even a battery pack. Could even be bluetooth triggered or connect to the USB-C port.