What is the best RF lens for Portrait?

To illustrate the answer to this question, I’m linking a video from James Reader below. But first, let me share some of my thoughts after watching it.

Owning all the lenses shown in the video could easily cost you between $10,000 and $15,000. All of these lenses are Canon L-series, which represent the top of the line in Canon's lens offerings. If you’re not familiar with the 'L' designation, it signifies Canon's highest quality lenses.

While you don’t need all of these lenses, videos like this can help you decide on the look you're aiming for.

In my experience, the best focal length for portraits is somewhere between 50mm and 85mm. Many photographers opt for the 70-200mm f/2.8 lens because it covers the 80mm range and works well for events where you need to maintain some distance from your subjects. Personally, I use the EF 70-200mm L for outdoor events and my 85mm (non-L version) for indoor events. A 24-70mm lens is also handy for indoor shoots when you need to capture both the subject and the surrounding environment. 

Enjoy the video.