From what I’m able to ascertain on a search, Amaro Averna is the ‘closest’ substitute for Lucano with the caveat that it does add more of a cola note. Others mentioned were Nonino and Montenegro but Averna was stated as the closest.

Built the Eclipse this evening and it is very tasty indeed! While many have stated that they find it a bit too sweet, to my palate it’s a perfectly balanced cocktail. After the first sip I added 2 drops of saline (4:1) and one dash of Angostura bitters. The saline really punched up the orange and cherry flavors while the Angostura added a subtle spice that pairs well with the smokiness of the Mezcal. I found this to be a really enjoyable cocktail.

Absolutely lovely cocktail. I added one drop of 4:1 saline solution and the flavors coalesced beautifully and just sang! Bright and fruity with a slightly dry finish. Brilliant!

Just discovered this gem of a liqueur last week and, holy smokes! It adds amazing flavors and just the right heat to a margarita. Highly recommended!