Help me find my perfect wp theme please

Need to create a portal (wordpress site) locked with username and password. In this website i need to include simple products only with name and price and search option (without images or anything else) but an option to add image to the products in the future is ok. Another option that will be nice in the future is to add products to favorites or order. Each visitor should me able to creat personal acc or his acc will be created by me and he will be able to enter in the hole site with his…

Help me find my perfect wp theme please