STDU Viewer - Are you tired from many viewers one for each document?
YACReader - Download YACReader for your platform. Windows, Linux, MacOSX. And enjoy you comic books cbr cbz with the best comic reader.
CDisplay Ex - CDisplay Ex is the most used comic book 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.
Comix - Comix is an image viewer specifically designed to handle comic books.