It’s so easy my friend, There are two methods to do it, Firstly Simply come to any contact us page generator online tool which is free for bloggers or websites, and enter basic details and your page is ready to use, and second is use any third party plugin and insert a contact form.
That’s all now your contact us page is ready to publish.

Because the contact page is the way for users to connect with users, giving the maximum details to the user as possible like email id, contact number, social media handles, etc. But as the minimum need is an email id or adding a contact form on the contact page is best practice.