Adding studio-like production value to my town hall meeting via GoTo Webinar

I lead employee town hall meetings and we use GoToWebinar to broadcast them. The town halls will remain entirely virtual for a while, and then a hybrid of in-person at Location A and virtual for all other locations.

I'd like to have the capability of slick video steaming production, with overlays, lower-thirds, bringing in a different # of speakers with laying layouts, etc.