These are called autoplace and autoroute.

They exist, but NONE of the PCB designers I have worked with, all of who have worked at multiple big name tech companies and still do, use these tools.

Do the work. Even something as simple at a guitar amplifier needs attention to detail, to route ground currents away from where they can cause noise. Even something as simple as a guitar amplifier needs attention to the current handling needs of individual traces. Even something as simple as a guitar amplifier needs attention to the detail of proper component placement to minimize inductance where necessary between bypass caps and their associated IC's. DO THE WORK!