Dom Morley is a grammy-winning producer and engineer who's worked with Amy Winehouse and Mark Ronson amongst others. He's teamed up with iZotope to create a series of videos looking at how to process vocals for professional mixes - and here is episode 1.
In the video, he goes over the processes and treatments he applies to vocals, including making space for vocals. If you want to know more about Dom's career, I interviewed him for my podcast a couple of years ago. He also runs a mix consultancy service, to help people get the best out of their music - learn more here https://www.themixconsultancy.com/