To show single variations on WooCommerce archive pages go to the “Single Variations” tab and select “Show single variations in loop”.
If you “Hide parent products” in loop when single variations are shown, only the variations of the product will be visible, as you can see in the example below:
Please, note that this option only works on default WooCommerce archive pages, so the Shop page, category or tag pages or other taxonomy pages, but it does not work on custom pages, for example pages where products are displayed through a Gutenberg block.
If you want to keep the order and show the same products sequentially, enable the “Order products by ID” option.