They are the pages you want your visitors to find for the pages you have optimized. The content in your landing pages should be dealt with differently from the content on other pages. We shall discuss two types of landing pages you would like your visitors to find from the search engines although they deserve a different approach.
Search intent
This is an overview of what your visitors are looking for. This should be taken into account when setting up your site structure. You should think about what people will enter in the search engine while looking for your site. Think carefully about the search intent, whether people are looking for a definition or an answer? Are they making a comparison of products or willing to purchase? This is defined in the question they make. With the idea of search intent, then you will ensure your landing page fits the search intent.
Cornerstone pages
These are the most important articles on your website. Their main objective is to provide full information about a certain topic and not to sell products. Mostly these are blogs that provide content for your website. Any article that describes everything you could ever know about a specific topic is a cornerstone article.
Product Landing Pages
They differ from cornerstone pages due to their short length. They are focused and not complete articles. They only define what your customer needs to know about your product to be convinced. You need enough content in these pages for Google to rank you and to understand what keyword to rank and about the page. The main focus is on your product description and use.
To conclude, you need to be careful with your site structure as you add in new content as it is a long-term SEO strategy. This is done by evaluating your menu as your products change your menu should change too. Also, rethink your taxonomy, be careful to evaluate when your one category grows more than others to avoid imbalance on your pyramid.