Following a recipe for a "Tequila Negroni" on another site which used Italian Red Bitter liqueur I can say that that is too bitter and swamped the other ingredients. This one sounds more likely to work (ironic because for a while I was using Luxardo Aperitivo instead of their Bitter Liqueur in other recipes!... And enjoying the results to be honest! :-) )

I have tried, multiple times, to like a classic Negroni, but I just cannot. So my version of this attempt was Cayeya blanco tequila, Contratto Bitter, and Dolin Vermouth de Chambéry Blanc. Much better IMHO with the extra sweetness, perhaps sliding the scale down to a 5. (Where DOES one put the "blanc" modifier up there?)

Having claimed never to have met a negroni I didn't like, this one was
challenging. Cocchi Storico was off
putting with Aperol and Altos plata. However a squeeze of lime and a splash of soda made it work.

I didn't see this Negroni riff called for Luxardo/Aperol instead of Campari. It is quite excellent with Campari, though I imagine much less sweet. This worked for us with excellent quality overproof blanco tequila - worth a try if you have good tequila!

Nice! Love it with tequila. Nice change from gin Negroni or bourbon boulevardier.

Perhaps a little sweet made as stated. We substituted a Rouge vermouth and voila! much more to our liking. With or without modification, a very niiiicccceee Negroni rif.

With a little adjustment: 5ml of Oleo Saccharum of Bitter Orange peel extra. Great!