You could buy a proper Espruino WiFi board? If you then wanted to switch back to ESP8266 once it was working, there isn't much in the way of code to change (it's just the Wifi initialisation stuff).
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
You could buy a proper Espruino WiFi board? If you then wanted to switch back to ESP8266 once it was working, there isn't much in the way of code to change (it's just the Wifi initialisation stuff).