Ettercap & Bettercap

Ettercap is a suite of tools for MitM attacks. It comes pre-installed in Kali. It can perform packet sniffing, filtering and a range of other tasks.

Bettercap is another level of Ettercap and supports a larger number of protocols. Wifi, BLE etc are all supported, as well as a packet sniffer, proxy, port scanner and other usefull tools.