I am using the self employed 2020 software, where can i find the amount we are entitled to for the Canadian child benefit? Thank you

You tax return is used to help calculate how much Canada Child Benefit (CCB) you are entitled to, but it is not included in the tax return. You will be notified in July with your new benefit amount. This CRA page has a calculator that can give you an estimate of your CCB and other benefits: https://www.canada.ca/en/revenue-agency/services/child-family-benefits/child-family-benefits-calculator.html