I have had luck with Corno Di Toro Giallo but much prefer the Red Marconi and Giant Marconi.
The "Corno was very prolific. walls are a bit thinner than the Red Marconi.
I like the Red Marconi better, sweeter, thicker and juicier but not as prolific as my Corno from last year but about the same this year.
Thick as my bells
.
.