Magento 2 Customization on our website listing page

We are building website http://3.226.80.244 for jewellery products. So in listing page we need banner to be added in product grid alternatively. There should be one banner and 2 products in one row in next row there should be 4 products in a row.
Reference URL: https://www.malabargoldanddiamonds.com/platinum-jewellery/chain.html Looking for magento2 developer.