I can hear you saying, "If I knew how to do that, I wouldn't be reading this article.
It will create 700 headlines based on the words you enter.
For even more ideas and some additional options, be sure to also check out the over on The Story Shack.
Anything that's too long is out of the question.
Sometimes, you can find a title in your theme, as long as you avoid preachy titles such as Honesty Is the Best Policy.