We've got free lower thirds for you to add to your video tracks. You'll need to decide if you want to have a static (non-moving) lower third, or a video (animated) lower third. Video lower thirds can look really cool but they may distract too much from the main portion of the video screen. It's up to you, we've got both kinds.
Choose your lower third category above.
Questions? Here are some answers that may help you: