If you’d like to experiment which content goal is best for you, you can do so by navigating to your settings. Look for the "Test & Publish" widget.
Depending on how your account is organized, you'll find the the widget within your Organization or Team tab.
Click into "Test & Publish" and navigate on the Test Default tab.
On the Test Default tab, you can select the default content test goal by using the relevant dropdowns. Your Link, Video, and Image content will have dropdown options that correlate to the optimization profiles relevant to them.
After you’ve selected your default profiles, don’t forget to hit the “save” button at the bottom of the page!
Curious about the different goals? Learn more about them here.