Personally, I would make sure the car fitted your needs (& desires) and not worry too much about how it is powered. Check out ZapMap for information on charging places in case you go down the PHEV route.
Getting a PHEV but relying on public chargers would be utterly pointless IMHO. I believe that PHEVs charge at a slower rate than EVs, but either way the range you get is minimal and the cost of using public chargers would probably make those limited EV miles more costly than just doing those miles on the petrol engine! As @mitch cannot charge at home, I maintain that a self charging hybrid is as far as he’d want to go.