This one is hard as there are hundreds, we strongly suggest you read more about Sydney cafes.
2040 Cafe and Deli
403-405 King Street, Newtown (02 9550 2500)
At 2040 you have the option of grabbing a quick coffee and bite to eat or dining in and selecting from the seasonal menu.
24 Addison Road, Marrickville (02 9516 1997)
Coffee Alchemy is so serious about their coffee, it's all they serve. Not only do they serve a range of hot options, they also have cold drip coffee and sparkling cold coffee.