What type of camera lenses do you now, are they Canon, Nikon, Sony, Panasonic or Keica?

If you have any lenses what are the sizes 50mm, 28-75, 75-200 or 200-400mm lenses?

What size lenses are you looking for on a bridge camera? The bridge cameras from Sony or Panasonic have a fixed lens from 28-600mm and range in price $1000-$1600 US prices. These prices are for new bridge camera, with used cameras are under $1000 for Sony and cheaper for a Panasonic.

Hope this helps you to find a bridge camera in you price range.

Now for a camera base what are you looking for, are you looking for a base to match the lenses you have or are you going to purchase lenses later?

You can find a base for under $800 in you price range but when you add the accessories like a microphone, external flash and a camera case you are going to be spending as much or more than a bridge camera. Now all new camera base are mirrorless and will be in your price range without lenses. Have you thought of a APC-S Camera and lenses? These will be cheaper than a bridge or a mirrorless camera with the same Megapixels as a Mirrorless. Now you will have to decide on a,fixed lens camera that is half mirrorless, a mirrorless base or a APC-S camera.
Good luck