Am 18 years under weighted 45kg, planing to take dietary supplement if its good please name some supplements suitable for me?

Questionable. In my opinion, many dietary supplements are questionable, particularly if you are referring to powders or drinks that promise to pack on muscle, etc. Consider eating a healthy balanced diet with plenty of fruits, vegetables, and lean protein (fish, chicken, turkey, but limiting red meat). And exercise. You will grow into your body in time.