Just about anything. Go to Project Gutenberg, pick a book of plays, or short stories, and just start reading. Be forewarned, though. Chekov doesn't do endings (for the most part) and he made no apologies for his lack of endings. You'll find out with a minimal investment of time whether or not you like his style. I do, despite the paucity of endings.
Endings are hard. I suspect one of the things that has enhanced Tom Hanks' acting career is making sure most of the stuff he did had a good solid ending, not a quick fade -- consider Saving Private Ryan, and Castaway. Killer endings. Tolstoy, unlike Chekov, does great endings.
