Separately from a few exclusions, all websites require some kind of techniques to communicate with the viewers, apart from dealing with or not to make them go through the content. Different WordPress themes straight integrate some type of contact form 7 add ons »  so that the recipients can get in touch with you.

But, if this is not the situation, there are lots of plugins that let you append forms to your website. In fact, you can set up in your dashboard more than one thousand! Some of them also allow works like Google sheet data to email » , post form data anywhere, etc.