How to make news article title link to external site?

Hi, my site is a news reference site.

How do I make the titles of my new post articles link to external site? I want people to click on the title and be taken to the original article and original site where it was published.

I don’t want them to be taken to the internal post to find the link. I just want them to click on the link from the front page and be taken to original.

Thanks.