Which libraries for Wifi and MQTT

My plan is to build a MQTT subscriber with a NANO 33 IOT. But which Wifi libraries are usable for this double-processor system? Last time I read that the MRK 1010 should be compatible?
In an example scetch i saw "#include <MQTT.h>. Where is this library?

I found the answer: All libraries for the Arduino MRK WiFi 1010 are working. So my first MQTT subscriber is running.

It seems the WiFi library is WiFiNina instead for the Arduino Nano 33 IoT.

#include <SPI.h>
//#include <WiFi101.h>
#include <WiFiNINA.h> //Include this instead of WiFi101.h as needed
#include <WiFiUdp.h>
#include <RTCZero.h>