Hello Randy,
For a Bar situation the best options are going to be either the TruGolf Vistas or the Uneekor QED. I would recommend something cheaper, but the cheaper options would sit either behind the ball or next to the ball and you might have someone run off with your launch monitor. Here is also a link to a video about commercial setups: https://www.youtube.com/watch?v=INsq7ZQt0jk&t=24s&ab_channel=TheIndoorGolfShop