Not sure how "legit" they are but tons around town.
Great restaurants there in San Miguel. Casa Denis, 'Ohana, Blue Angel, .....
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Long time ago there was a place called the Havana Club that had the best selection abs prices. They also used to have a jazz trio that played in the restaurant with some darn good food. According to that site is either gone or had changed hands and is called something else now.
Theres a legit store right off the port where all the shops are. Theres also a Habanos store a little further down Habanos tobacco and cafe Havana club Havana bobs Casa de Habano
All those are gtg. Theres more shops but i haven't been to those. Prices are higher because tourism.