To clarify, do you have a QuickBooks payroll account? If you run payroll inside of the payroll module, there's no need to create them manually. QuickBooks will automatically create a corresponding entry. I'd be glad to guide you through how to pull up your payroll journal report.
Go to the Reports menu.
In the Find report by name field, type in "Journal," then press Enter.
Click on the Customize button.
Under the Filter section, select Transaction Type.
Under the Transaction Type drop-down arrow, select Paycheck.
Click Run report.
If you wish to customize payroll and other reports in QuickBooks Online, here are the helpful articles that you can check out: