Where are 1040es forms for 2019

[ee-ea]

Ger them here   https://www.irs.gov/pub/irs-pdf/f1040es.pdf

[mesquitebean]

Or if you want TurboTax to help calculate the 2019 estimated payments and print the populated 1040-ES vouchers, we can tell you how to go through that interview topic.

You appear to be using Online Self-Employed Edition.   The method to get to the estimated taxes section depends on whether you have already filed the 2018 return, or if it is still in preparation.