You can go to your Chart of Accounts and see the list of categories you can use to match your bank transactions. To do so, navigate to the Gear icon in your QuickBooks Online (QBO) account and select Chart of accounts.
Please don’t hesitate to post a reply in this thread if you have other follow-up questions about categorising your transactions in QBO. I’d be more than happy to help you out. Have a wonderful day ahead and take care!