You may not be able to bring back a physical home button (unless you buy the iPhone SE), but you can customize a virtual one that moves around the screen and customized to meet your needs.

You can get the Home button back. Read on to find out what you need to do. Add a Home button to iPhone screen iOS includes an accessibility option that displays a software Home button on the screen.

To get started, press and hold an empty area on the home screen until the icons start jiggling, then hit the "Edit" button in the top-left corner and choose "Add Widget" from the menu.