The legends of Northern Light are true. All you need is a reasonably sized window with a northern exposure, and a white wall or backdrop.
If you stand in front of the window, with subject facing the window, you will see the most beautiful glow on the subjects face, absolutely no shadows, skin smooths and wrinkles disappear, and lighter colored eyes become electric.
Then you can turn 90 degrees and use the window as a side light for a more dramatic affect. You can’t improve on Gods natural northern light!
Here’s a sample with front lighting on the left, and side lighting on the right. You’ll need a low aperture lens because you’re shooting available light. But that works well to throw any background out of focus and isolate the subject.
Here’s another sample but this time with side lighting on the left, and front lighting on the right, and you can see how the blue eyes become electrified.
Have fun!