If you're looking for manga similar to Boku no Son Goku, you might like these titles.
In the mystical world of Shangri-la, demons and humans live side by side, watched over by a parthenon of ancient Chinese gods. But when normally-civilized demons start to go berserk, the gods require the services of Genjou Sanzo - a Buddhist priest with a magical gun, an evil-banishing scripture and a take-no-prisoners attitude. Aided by the ancient monkey god Son Goku, the half-demon Sha Gojyo and the demon exterminator Cho Hakkai, he sets off on a treacherous journey westward, with armies of demons, dark mages and angry gods all standing in his way...
Assobot Goku is the strongest and worst assobot there is, and he and his gang take what they want without remorse. But when he sets his sights on Miroku Village, and meets up with a mysterious young man named Sanzou playing a strange harmonica, he gets more than he bargained for. How does Sanzou know about Goku, and how are they both connected with a prophecy foretelling the destruction of the world?
A classic - journey to the west inspired manga by Yuta Kayashima takes you in to a world of.... crazy girls friends taking up full colored pages of manga for an adventurous ride to the west!