Even with no income, you still have to file an 1120-S for the corporation as long as the election remains in effect.
See https://www.irs.gov/instructions/i1120s#en_US_2021_publink11515kd0e292
You can use TurboTax Business to prepare and file the 1120-S but you will also need an individual income tax preparation product, such as TurboTax Premier.
