I can definitely help you with how to get the reconciled reports in QuickBooks Online, @leekwan.
You can get the reconciled reports in the Reports tab. I'd be glad to show you how to do that.
Go to the Reports menu and enter Reconciliation Reports in the search box.
Locate the correct date in the Report period drop-down button and click it. This is how it looks like:
I've included this additional reference about the reconciliation report: How do I view, print, or export a reconciliation report?
Here's an article for your future task if you want to make your sales forms more presentable in QuickBooks Online: Import custom form styles for invoices or estimates.
I'll be here if you have other questions or concerns about QuickBooks. Let me know in the comment section. Take care.