SMB tax estimator software

Does anyone have a good recommendation for tax estimator software for small and medium businesses? I sold a business this past year (2019), and am trying to estimate my full tax liability (both federal and CA) before I pay taxes in April and likely again in October.

It would be great if someone knew of a good SMB software that would allow me to plug in a handful of business and personal variables so I can estimate by 2019 liability as there are several months before I need to pay. I took a look at turbotax but am open to others as well.

Typically I work with a CPA for the filing, but thought that real time automated estimation could be a good thing to put into place so I can hold appropriate tax reserves in future years.