Thanks for chiming in on this thread, 9130 3515 4534 9676.
I'll share some details and screenshot where you can locate the option.
The Accounting option is also available in other versions of QuickBooks Online. You can find it on the left navigation menu. In case you don't have the menu, please make sure to click on the hamburger icon to display it.
Here's a sample screenshot for a visual reference:

You can also find the Chart of Accounts option when you go to the Gear icon.

Then, follow the steps shared by my colleague Adrian_A above.
To help manage your accounts in the Chart of Accounts, you can watch a video tutorial in this link: Edit Your Chart of Accounts.
If you have any additional questions regarding the options or need help with other features in your account, please let us know on your reply. We'll be right here to assist you. Have a good day ahead.