It's kind of obvious, don't you think?
All is very simple. Business use advertising to attract new clients. But for this purpose you need to create modern website. Usually such sites are really difficult, but also there are many different tools which can help. For example you can find relevant ready made template or theme for Wordpress and use it. It is quite simple if you will use special guides. Of course if you will need some help, you should use professional help, for example you can contact Dteam https://dteam.dev/ web development company.