You'll find recommendations for reading here. The biggest advantage to knowing Japanese is that you open up the remaining 90~% of the works that never see the light of day in the eyes of those who can't read and I stumble across quite a lot of them. It's actually gotten hard to remember the actual titles I want to follow up with so this is actually as much to recommend something new to people as much as it is a way for me to remember which ones of these I actually liked.