I like soft natural light from a large window. The quality of the light is great, and it also sets a nice mood. It is easy to work with that kind of light. Unfortunately, up north, there's a thing called winter. The sun go down so fast that at 2 p.m., it's already tough to shoot natural light. Same problem when it's pouring rain outside, whatever the season. Sometimes, it gets really dark even in midday. There is also the problem that sometimes, that big large window simply does not exist and you need one now! Right there! What? I don't care if we are in the middle of a bunker, I need that large window RIGHT NOW!
Since it's not always possible, you can always fake it. All you need is a big large white fabric that will cost you around 10$ (mine is in Nylon). You also need something, or someone to hold it. In the photos below, I used two flash stand and two clips I got at my hardware store. On a side note, you should always have some of those clips with you. They are handful for many things. That, and duck tape. You should always have duck tape with you, even if you have no idea why.
Back to the subject: creating a window. Obviously, you also need a light source. A simple flash can do the job. You can also use studio strobes, light panels, etc. Anything that produces enough light to be useful. Don't put the light source too close to the white fabric. If you use a flash, it should illuminate all the white fabric, not just the center. The lighting will be more even.
Place your model the same way you would work with a large window. Consider the white fabric to be an actual window and use it the same way. Here are some shots taken that way. Those were taken with the Panasonic LX100 and a wireless hot shoe flash trigger. Shutter speed was between 1/500s and 1/1000s (I wanted to kill all ambient light), aperture at f/2.8 and ISO 200 or 250.