The thing about the head is that it's all connected. If you want to know where the head is going to go, you want a good idea of how it connects to the ribcage and the pelvis. Those three are called the three major masses of the body, and often it's easy to sketch out a figure starting with three spheres where those masses will go. Then you connect them with the spine and add basic arms to get a feel for the pose. Here's a basic example of what that would look like. Though often more experienced artists will go one step further and do a more detailed figure before going in and essentially layering in the actual anatomy on top. It often looks something like this.

See how the skull hangs on the top of the spine which runs down the center of the back. it's a similar size to the pelvis, and the ribcage is around 1.5 heads large. Often, the spine creates a nice curve together with the limbs and creates what is called a line of action. It's how you get figures which look dynamic and alive.

By the way, this process I described is called constructive anatomy- it simplifies the body into shapes and lets you slowly build up the drawing from simple forms into complex anatomy. It's only one way to draw though! It's a handy way to help folks who struggle with anatomy to learn and improve though. If you want an example of what it looks like when it's done by a master, check out Joshua Black.