If you want to create a website from scratch without using any code, then you can use SeedProd.
It is the best WordPress page builder on the market that lets you create custom themes and landing pages without any coding.
The plugin comes with 300+ premade templates, a drag-and-drop builder, and numerous advanced blocks that allow you to build an attractive website with just a few clicks.
For details, you can see our tutorial on how to create a landing page in WordPress.