Opera has the opera://startpage page that allows you to put multiple homepage buttons (speed dials) on it. So, each thumbnail on the start page is a home page button. To get to the start page you click the + button in the tab bar which is like the main home button.
With that said, you can use an extension from https://chrome.google.com/webstore/search/home button?_category=extensions to add a button to the right of the address bar to load the site you want when you click it.