Ron del Barrilito is pretty good. The 3 star should be readily available and is ok. But the more limited stuff is awsome. There is some weird variation where you must bring back their container (like a growler) that is the best I have ever had (including cuban, guat etc.).
Don Q anjeo is ok too but pricy for what it is.
The barrilito 3 star is pretty cheap and very good. I guess they don't distill anymore and take the alcohol from baquardi (ick...don't let this fool you) then add their own ingredients and age. They have some 40+ year old rums. pretty cool operation.
there is one other brand I grab when in the carribean but I don't recall the name. I'll have to look.