Assuming you would like to know how to make YouTube your homepage in Google Chrome:
1.Open Google Chrome. It's a red, green, yellow, and blue circle icon.
2.Click ⋮. It's in the top-right corner of the window.
3.Click Settings. This option is near the bottom of the drop-down menu.
4.Scroll down and click Advanced. It's at the bottom of the page.
5.Click Site settings. This option is in the middle of the page.
6.Click On Start, open the home page. This option is in the "On start" section.
7.Enter https://www.youtube.com/?gl=US in the "Customize homepage" box.
8.Click Done. It's in the bottom-right corner of the window.