Question

most stars are this type on the hr diagram, just like our sun.
the hertzsprung - russell diagram
and super giants
blue super giants
white super giants
white dwarfs

Explanation:

The Hertzsprung - Russell (HR) Diagram is used in astronomy (a subfield of Natural Science: Physics or Astronomy - here we can consider Physics as the broader subfield or recognize Astronomy as part of Natural Science). The Sun is a main - sequence star. On the HR Diagram, most stars (including the Sun) lie on the main sequence. The main sequence is the diagonal band from the upper - left (hot, luminous O and B stars) to the lower - right (cool, less luminous M stars). The Sun is a G - type main - sequence star (spectral type G). So the type of star that most stars (including the Sun) are on the HR Diagram is main - sequence stars (specifically, the Sun is a G - type main - sequence star, and the main sequence is the dominant population of stars).

Answer:

Main - sequence stars (or more specifically, the Sun is a G - type main - sequence star, and most stars lie on the main sequence of the HR Diagram)