Help with garage WIFI - eviltoast

Hello guys,

I live in a flat on the 3rd floor and have a garage across the street. I would like to extend my current wifi to it in order to add some sensors/do some automation stuff.

My question is: what is the best aproach to do this. I have currently a AX1800 Wi-Fi 6 Router that barely reaches the door of the garage.

Thanks.