Begin with FamilySearch.
https://www.familysearch.org/en/wiki/Italy_Genealogy

Based in the UK, is the Anglo-Italian Family History Society
https://anglo-italianfhs.org.uk/

The Italian History Society is based in Australia, so it follows that the first part of this link connects mainly to the finding of Australian records.
However, if you scroll down there are links to Italian sites which might be useful, though I expect that they will be in Italian.
https://www.coasit.com.au/italian-hi...y/useful-links

And for all other Italian genealogy websites (and indeed, genealogy sites for any country) try Cyndi's List.
https://www.cyndislist.com/