We have an EO Smarthome charger which does basic integration with PV but is not anything I'd recommend now, primarily due to the dreadful app and limited functionality. Ohme appear to be the only brand that Octopus, OVO (and Eon?) are all willing to integrate with for smart tariffs. I'd be very wary of going with a company that's just been bailed out. The odds of them still being around providing support a year from now are pretty shaky.
Zappi will definitely still be here. Shame it looks like a toilet seat