Unfortunately, TurboTax Online does not have a forms mode to see the forms you are filing while your return is in progress.
TurboTax does not charge by specific form, but rather a group of forms reflecting the complexity of your tax return.
Follow this link to see what forms are covered by TurboTax Deluxe and the other TurboTax Online products:
https://turbotax.intuit.com/personal-taxes/online/deluxe.jsp