By Default, the Billing address will be display with the Payment method, and the second OOTB option to display payment method is on the Payment page.
The payment page Options used to display the Billing address after the payment method. OOTB Billing address Display Options
You have a custom requirement like, Display the Billing address before all the payment methods you need to do customization for that. Continue reading “How to Move Billing Address Before the Payment Method in checkout Magento 2?”