I'm sorry for your loss.
If the estate had more than $600 in income for 2019, you will have to file a 2019 return. List the beneficiaries, even if there were no distributions in 2019. Just list zero for the amount distributed.
To file a 2020 return for the estate, you will have to wait until the forms for 2020 are issued, probably the beginning of next year.
For an estate return you need to use TurboTax Business, which you can purchase and download by clicking this link: TurboTax Business
