Italian Fiscal Code application in English – Codice Fiscale Italy is very easy to get also online.
Just download & fill the form & sign & scan it from here and follow all the instructions:
https://getcodicefiscale.com/
https://getcodicefiscaleonline.com/italian-fiscal-code-application-in-english/
https://getcodicefiscaleonline.com/1-download-fill-the-form/