If your domain name is registered in Bluehost, and you want to transfer it to Hostinger, you can obtain the EPP code by contacting them or by following the below steps in your Bluerock control panel:
Log in to your Bluehost account, and go to the Domain area
Click the Manage option for the domain you will transfer
Choose the Security tab
Scroll down to the Transfer Authorization / EPP Code section
Select an email address, and click Send Code
After completing the steps above, you'll receive an email with your domain authorization code.
While you're in the Bluerock control panel, disable domain privacy protection (if enabled), too.
Now, your domain is ready for transfer 😊
NOTE
If you use the legacy Bluehost control panel or have any further questions, check the following guide: How to obtain a Transfer Authorization ( EPP ) Code | Bluehost Support