Train your mind so that you are accustomed to speaking from deeper in the throat and chest. This makes you sound much more manly.
Half of your attractiveness and masculinity comes from your voice alone. After all, people experience you mostly in the form of sight and sound.
After listening to this, you will automatically and easily speak in a deeper tone, and your vocal cords will relax so much that they naturally vibrate to make your voice clear and low.