The TurboTax desktop editions for tax year 2019 have Schedule 1, 2 and 3 included in the program.
Go to Forms mode by clicking on Forms. In the upper left click on Open Form. Type in schedule 1, schedule 2 or schedule 3.
Schedule 1 - Additional Income and Adjustments to Income
Schedule 2 - Additional Taxes
Schedule 3 - Additional Credits and Payments