If you consider a CZ a good substitute for a diamond or a supermarket steak just as good as Kobe beef, then you may want to try any of the aforementioned "taste-like" OpusX. But in truth that is why a premium cigar costs premium dollars. You will find Nicaraguan or Honduran cigars as strong as an Opus. A few Dominican's might have some of the flavors(not all) of an Opus.
But an Opus is an Opus, that is why they command and get the prices they ask.