How to get MAC address, SSID and RSSI from other wifi devices?

Hi there! I'm new in Arduino's world and i am in a project that consists to register RSSI of all WiFi devices arround of me, for that, I would save the MAC address, SSID and RSSI of each device that I scan.

How I whould do this? I have seen other thread at this forum with similar problem, but the solution get RSSI from devices that connect to the WiFi device.

https://forum.arduino.cc/index.php?topic=423460.0

Thank you for your time.

EDIT: Sorry, but i am using an ESPDUINO with an ESP8266 WiFi module.

Lets start with why you want to get the RSSI value(s).

It is simple I want to make a WiFi map, and I need the WiFi RSSI at each point.

So can you help me?