I came across this interesting article online this morning and ended up buying a copy of The Dedalus Book of Estonian Literature shortly afterwards. The article recommends some of Estonia's top literary works that have been translated into English, and as I have read several of them, I agree with many titles on the list. All we need now is for more classic Estonian novels to be translated into English so they can reach a wider audience.
You can read the list here: Literature from Estonia: 16 Books to Get You Started