hacking kettle from wifi

I wanna hack kettle with Arduino from wifi, but I dont know what Arduino will be the best for that. Can someone help me?

Why not take a look at the ESP8266 or the WeMos D1 Arduino board. That gives you a proven WiFi interface debugged and the necessary libraries are free. You can also get a Sonoff and hack it, has the hardware already connected. Here is the Link: https://sonoff.tech/