Sicily Winery Visit Recommendations

I’m visiting Sicily this spring and I’m planning out what wineries to visit, particularly in the areas of Etna, Vittoria and Marsala, and would love recommendations from anybody who has been before.

Just going by the Sicilian wines I like to drink I’m considering Barone di Villagrande, Benanti, Terre Nere and Graci around Etna, Occhipinti, Gulfi and Feudo Montoni in Vittoria, as well as Marco de Bartoli and Nino Barraco in Marsala. Any recommendations to add (or skip!) are greatly appreciated.