Ben Swann's video is the most concise, introductory, and carries an air of respectability as it actually aired on television. But like QAnon, there are many different versions of Pizzagate, and many different levels of opinion and interpretation. Ultimately you shouldn't try to convince anyone of anything you can't fully explain and prove yourself. So do the work and summarize the information you seek to express. In doing so you'll find that many of your opinions aren't even your own, but regurgitation of things you found convincing but never took the time to adqeuately investigate or thorougly explore.