almost all stand users could kill non-stand users becuase u need a stand to see and to combat stands, like joot could meet a non stand user who was powerful but just sneak attack w/ star plat ez kill.
LIST OF CHARACTERS THAT CAN KILL GOKU WITHOUT QUESTION. KENSHIRO , ICHIGO KUROSAKI , AIZEN SOSUKE , NARUTO UZUMAKI , SASUKE UCHIHA , KURAPIKA KURUTA , KURAMA ( YYH ) , ITACHI UCHIHA , MADARA UCHIHA , MAYURI KUROTSUCHI , KAGUYA ( NARUTO ) , YHWACH , FALCO ( HNK ) , CHROLLO LUCILFER , MERUEM , ISAAC NETERO , HASHIRAMA SENJU , JOTARO KUJO , DIO BRANDO , AI ENMA , LUCY ( ELFEN LIED MANGA VERSION ); THE LIST COULD GO ON