ESP32 replacement PCB design

I have an existing PCB with a small, detachable daughter board that connects via 8 header pins. The daughter board is responsible for Bluetooth communication and communicates with an MCU via UART. I want to replace this daughter board with a custom designed PCB (with ESP32) so that it's plug and play. I've already prototyped and successfully tested a mockup with jumper wires, but I need help designing the PCB and coming up with a file that I can send away to have the PCB printed and shipped to me.