Getting a new website created and putting it online is an exciting time. There is nothing more rewarding than people visiting this new website to interact with you or purchase your product / service.
One way to get traffic is to have your website found by Google. There is no exact science as to how to have your website listed on page one, but Google provides some webmaster tools in order to help. See https://www.google.com/webmasters/#?modal_active=none for Google's own guides and tools on how to maximise your website's exposure in the Google search engine.
Remember, no 3rd party can guarantee a page one listing in Google's listings (natural results, not adverts) & avoid any services which claim to be able to rank your website higher in the search engines as this can often harm your website's reputation or end up costing you a lot more than you think.