On the product page, you can also search (and delete) the products that you have added.
For each individual product, you can set the visibility on or off. The reason is that, we understand that some products will only be seasonal, or could be out of stock. So, if the products are unavailable, you can simply turn it ‘off’ and it will not be visible to site visitors while retaining all product data.
If you have a lot of products, you can make it into a category. Learn how to create category.