Problem with different vocal doubles

Hello, I have recorded the vocal of the song by verses, 3 doubles of each. Then I selected and compiled the best pieces, but they sound rather different by timbre and loudness. I have applied the option Smooth Vocal, but it is still noticeable.

Is there an option in Adobe where the vocal clips could be somehow smoothed by timbre? A sort of automatic equalization... If it can be done only manually - how could it be done?