Good day, a2belevators.
You can look for Sydney-based ProAdvisors that are offering basic QuickBooks Online training. They're usually accountants or bookkeepers who are experts in QuickBooks and Intuit products.
You can go to this link and type in Sydney in the Search field: https://quickbooks.intuit.com/au/find-a-proadvisor/.
You can also filter the search result to only show ProAdvisors who are offering trainings for QBO. Here's how:
Let me know if you need more help making your self familiar with QuickBooks and how it works. Thanks!