That's a big one - It's really hard to know what you are looking for, you can try either This site or this site to help you find new artist in the same style or athmospher that you like by either searching by style or by similar artists.

About a year ago i went to an amazing tiny concert of a singer called Kymia Dawson, she makes this really personal not really belong to any  music style I know. I really love her stuff. Also, the label that represent her has a lot of really cool artist