If you don't want to mess with render settings, With light settings, Lighting Rigg, Test renders or in any reason you don't want to learn or buy another software package for lighting, Or you are in a rush and you don't have enough time to mess with lights, Or you don't have enough knowledge about lighting, Or you don't have a powerful computer. This is exactly what you are looking for. This file is consist of 10 lightings set up for a portrait rendering. And I made a short tutorial for rendering the ao pass on youtube. You can find the link down below. The project was rendered in V-Ray for 3dsmax 2020. By the way, the character model it's included with the project file also. Have fun ;)

Tutorial: https://youtu.be/krep-wYuNTU