When it comes to designing landing pages there 3 core elements.
At the very top you have the Hero Section which contains the main banner, why people should care about you, and a call to action.
The next section should contain 3 benefits for using your company. This could be short lead times, customer service, low prices, etc.
And then the bottom section is for testimonials. For this pick the top 3 that really drives home why a customer should choose you.
To learn more and see an example please watch the video below.