For me a Dubrovnik set has to have broad base and not tapered one so that leaves 4 choices: House of Staunton, Official Staunton, Staunton Castle and of course Noj.
One note: House of Staunton 3.75" has two lines, the "budget" line that cost 219 USD and the top line which cost 359 USD. They're the same design wise except for the knights, the budget line is more unicorn like and less finely carved. Also the weighting is a lottery, if you're lucky you get a batch with consistent weights.
Staunton Castle will come out with different woods for their Dub line any time soon, so I'd suggest to wait to see what's that like. One wood for sure is rosewood, I think that will be a hit.
Edit: I didn't mentioned Thechessempire, although it has broad base but I don't like the knight.
Speaking about the knight, basically there are two version of knights, the classic one like OS and CS or the robust one like HoS. Noj has both, the 1950 version is classic one and the Minceta is the robust one. A matter of preference which one you like.
I don't have a Dubrovnik set and I was thinking about buying one, but there are so many reproductions and variants that I really don't know what and where to search. What are the best reproductions and from which store would you recommend to buy one? Thank you