Ok...you asked for it.

The Miser by Moliere
Tartuffe by Moilere
The Cherry Orchard by Anton Chekov
Six Characters in Search of an Author by Luigi Pirandello
Mrs. Warren's Profession by George Bernard Shaw
The Importance of Being Earnest by Oscar Wilde
Hedda Gabler by Henrik Ibsen
Oedipus Rex by Sophocles
Desire Under the Elms by Eugene O'Neill
The House of Bernard Alba by Federico García Lorca
The Good Person of Szechwan by Bertolt Brecht
Miss Julie by August Strindberg
The Country Wife by William Wycherly
I Remember Mama by John Van Druten
Of course these are just some ideas. You could read just about anything by the better known playwrights. Chekov actually wrote some comedies, he's just known more for his dramatic works.