How does the ESP will communicate with the Arduino? Using serial communication? What exactly do you have in mind?
It would help if you could describe your application a bit more. Regards,
Rui

I take a trouble when try serial communication with Raspi and Arduino at the same time.
How we can connect ESP with Arduino and Raspi ?
Use different way like UART , I2C or something else.
I want to find the best way for transfer Data to Broker and Arduino at the same time

What was the problem with the serial communication?

I am a newbie so hard to explain exactly !
It likes when I Serial.print(messeger) from Arduino and Raspi (Broker) the Data so complex and delay sometime missing when to transfer !
I am looking the solution to divine 2 ways ESP and Arduino, ESP and Raspi the same time

No problem! I\’m here to help and trying to understand your problem. The serial protocol is a bit slow sometimes, if you need to process the data very quickly… It also requires a physical connection. To establish a two way communication, you could connect all your devices using MQTT via Wi-Fi (ESP32, ESP8266, Raspberry Pi, or Arduino+Ethernet Shield).

Thanks for help.
Now I am trying use ESP32 to support build MQTT, it is easier and more efficient !
 

Exactly for a reliable wireless two way communication, I recommend MQTT. Let me know if you have further questions!