The first two are possible, but not really normal. Only ethyl alcohol is served. You should really ask what kind of alcoholic drinks they have. The last one is just wrong. Alcohol is singular. Kind is singular. The verb "are there" has no need to be in the plural, and should read "is there." Ethyl alcohol has 2 carbon atoms: CH3CH2OH. Methyl alcohol, CH2OH, makes you go blind. There are also many other less common kinds.