Here you can get a Stylized Male Head Basemesh that covers all your needs . Let's see what you can do with this basemesh:
Features:
Sculpting freely and finally use the lowest subdivision level for your final lowpoly head without any need to retopology and UV Unwrapping
Files:
NOTE:
If you have older version of ZBrush you can use FBX or OBJ files and use (Add Subdivision level -> Project All) Technique to achieve all Subdivison levels