 If you liked Kono Subarashii Sekai ni Shukufuku wo! |  ...then you might like World Teacher: Isekaishiki Kyouiku Agent |
In both the Male protagonist is reincarnated in a parallel fantasy world. In Konosuba the male lead is reincarnated at the same age that he had when he died, in addition, the focus is on the comedy. On the other hand , in World Teacher the male lead is reincarnated as a baby with his memories from the past live. In this novel the male lead grows up in each volume and he uses his knowledge from the past life to help himself to succed in this new world, the focus is on the slice of life with action.