The choice of EVSE (the charger is actually built into the car) largely depends on the priority you put on various aspects. Also worth checking as some building codes require outdoor EVSE's to be hardwired.
Is WiFi and data logging important?
Built in the US?
Support/warranty US based?
"Ruggedized" like some of the Clipper Creeks?
As fast as possible on your 50A circuit, or matched to the charger in the Clarity?
Capable of sharing if you want to add another EVSE on the same circuit?
A longer than average cable option available?
Also - remember to file for your 30% Tax Credit
2018 Clarity Electric (Vortex Blue)