It is best to shave off head completely by men, as Prophet peace and blessings be upon him made Dua three times for the head shaven people and once for those who take hair around their head.

Our family will inshaAllah be going for umra ,my husband and son,usually,after umra get their hair cut from all sides by a barber around sai area,but i heard that shaving off all hair is more rewarding ,plz could u elaborate on the rewards of shaving all hair v/s just cutting all hair for men,i wish to atleast ,convince my son(13 yrs old) to do whats more rewarding !