CDisplay Ex - CDisplay Ex is the most used comic book reader.
Manganelo - Manganelo is an online application for manga lovers that offers millions of Manga to read and share.
YACReader - Download YACReader for your platform. Windows, Linux, MacOSX. And enjoy you comic books cbr cbz with the best comic reader.
Tachiyomi - A free and open source manga reader for Android.
HoneyView - HoneyView is a fast image viewer that supports archived image file for comics/manga/photos.
Panels - Comic Reader - Panels is a CBR/CBZ/PDF comic reader for your iPhone and iPad devices. Enjoy reading your comics in a clean and delightful interface.