What does each star explode into?

The life of a high mass star goes like this:

A nebula gets hot and nuclear fusion binds it into a high-mass protostar

the protostar ages into high-mass, very hot star

that hot star explodes into a supergiant, which proceeds to explode into a supernova

the supernova then shrinks into a neutron star or a black hole

the life of a low- or medium-mass star goes like this:

a nebula gets hot and nuclear fusion binds it into a low-mass protostar

the protostar ages into a low- or medium- mass,cool star

the star explodes into a red giant, the red giant explodes into a planetary nebula

the nebula shrinks into a white dwarf, which then dims into a black dwarf

i hope i was able to answer your question.