Rob, you're not one to use such advice
, but here goes nothing.
Cuban influenced seafood ON Miami River is Garcia's. That's an easy call. I liked it well enough. Almost like Stop, Life's Too Short, but with decent food on a refreshingly un-sexy, not-Euro, industrial stretch of the river. I just went to a similar place in SF near the new ballpark, but that's another trip.
For stuff you can't find here, I'd focus on Trini roti shops and Haitian. Like taquerias, unless you've been in the extreme recent past, a reco is probably not worth much.
There's a lot of Argentinian, but I'm not so sure how much of it is substantively better than what's on hand here. I mean, I spent a couple of weeks driving around in Argentina, and there is just so much you can do with beef, salt and fire (and noquis). Great stuff, but not a subtle cuisine. Tango Sur is the real deal. Graziano's seems to be your place, however, with more Italian stuff.
Tobacco Road is a good bar, and gives a taste of pre-Sly and Madonna Miami. Ever been to the Forge/Jimmyz? Great steak house, lots to look at, incerdible wine cellar. How about a Cuban at Latin American?
What about Miami Cuban hamburgers seasoned and covered w/ fries (like Primanti Bros.), fritas? A fresh tropical juice bar might be in order.
icuban.com has very accurate reports, especially on Miami Cuban, IME. Good luck.