i feel like the gazetta is just as nice as the framesets you listed. it's light for a steel frame, well made, and has some nice details.
also, the black friar colorway is imo the nicest variant cinelli offered on the gazetta, and hard to find now a days.
if i had to nitpick the unicrown fork is lack luster but you already upgraded that
.
i just can't really see any other mass produced frames being much of an improvement. maybe try to score a nice lugged njs frame or go custom?
wanted to add these two sites, they always have some interesting framesets available that i personally enjoy drooling over:
https://kuromoribikeco.com/
https://www.tracksupermarket.com/frames.html