Go to the COA (chart of accounts) page in QBO. On the top right, above the columns you should see a pencil, printer, and gears. Click on the printer and you can print the whole list. I would suggest to print in Landscape view, its easier to read. :)
Also, a quick summary of your COA is the Balance Sheet and Profit and Loss Report. From those reports, you can see the financial picture of your business.
Hope this helps! :)