Red,
Since you posted this in the Cuba forum, I'd assume you're asking about Havana cigars.
I think your best bet would be to chat up the tobacconist and let him know what kind of smokes you like (in terms of flavor, strength, etc.) and ask him for recommendations.
Things you might want to try that are popular and might provide some basis for beginning discussions with others about Cuban cigars might be:
Partagas: Serie D No.4, Shorts, Serie P No. 2, Lusitania, Lonsdale, 898 varnished
Cohiba: Robusto, Siglo II, Siglo III, Exquisito
Trinidad: Reyes, Fundadores
Bolivar: Petit Coronas, Belicosos Finos, Coronas Gigantes, Royal Coronas
Punch: Punch
H. Upmann: Magnum 46, Connoisseur No.1, Monarch
Ramon Allones: Specially Selected, Small Club Coronas
Montecristo: No. 4, No. 2
There are likely to be many more that are available depending on the shop and country you visit. If you are going to a place that has Regional Releases, you might want ot give those a swing as well.
Wilkey