Login page

Hi! I am looking to start a section on my website that will allow reader to signup for and log in to a specific part of my website, just as a reader. I want it to be like what this guy has that I signed up for https://offlinevideodomination.com/ https://offlinevideodomination.com/wp-login.php

My site is lehighvalleywomansjournal.com

What plugin should I use to accomplish what offline… did?