YACReader - Download YACReader for your platform. Windows, Linux, MacOSX. And enjoy you comic books cbr cbz with the best comic reader.
ACBF Viewer - Comic book reader.
Tachiyomi - A free and open source manga reader for Android.
Kuboo - Free and open-source Ubooquity client for loading and reading comics on Android.
Comix - Comix is an image viewer specifically designed to handle comic books.
CDisplay Ex - CDisplay Ex is the most used comic book reader.