Welcome. The easy way is to buy a titler that has pre-packaged lower thirds (like NewBlue) .. the best way is to learn something like ProType titler (which comes with Vegas) so you can create exactly what you want .. Search on YouTube for tutorials on how to create lower third titles and Vegas Tutorials in general. https://www.vegascreativesoftware.info/us/forum/vegas-pro-tutorials--103245/