As well as Slayers, Hajime Kanzaka has several other series, most of them novels, but some manga too.

Lost Universe   Sheriff Stars   Cross Cadia   Higaeri Quest   Road to Demon Lord   Juurinsha-tachi no machi
Yami no sadame wo seou-mono   Abyss Gate   DOORS   OP Hunter   Jabrow no daichi-ni    
   
Media List « Media List
Complete list of these other Kanzaka works, arranged temporarily.