Is drama a Common Noun or a collective noun?

The word 'drama' is a common noun, a singular, common, abstract noun. A collective noun is a word to designate a group of individual people or things as a single group such as a crew of workers, a herd of cattle, or a sheaf of wheat.

A collective noun for 'drama' could be a series of dramas, a program of dramas, or collection of dramas.