Install Kali Linux on external drive from macOS

Hello,
I would like to know if is possible to install Kali Linux on a external SSD from my macbook.
I download the .iso image but I don't know what I have to do next. I was searching on google and youtube to see how I can do this but to be honest I haven't find any useful information.

I think this is the best place to ask and learn about Kali Linux. I don't have any ideea how to install and I never used linux but I would like to learn and add this to my skills.

(I'm really sorry if this is the wrong section)