Customize product template loop

Hello,

Build a new theme and adding Woocmmerce support.

Overriding the templates in my child theme.
Adding also woocommerce.php to the child theme.

../child-theme/woocommerce/.. adding here all the wc files that i want overriding.

My biggest problem is how overriding and making a new layout for the product loop.
When opening the template part ../content-product.php, there is no html inside!
What is the best way, overriding the woocommerce loop with my own html programmatically??