Vera Camera Motion is a Blender addon that adds real-life camera motions recorded using Motion Tracking in Blender. It comes with 25 presets straight out of the box, and the workflow is simple: select a preset, add a camera, and switch to it. The cameras are automatically aligned at their positions, and you can move them to any location using the "Vera Camera" Empty.
The preset library covers a range of movement. Walking Motion pulls out human movement in a project. Shake Well Motion suits shots that call for anything from no movement to a lot of motion, adding realism. Heads Up Motion behaves like a human head looking around or a phone camera, and can be used with the zoom and depth feature Blender offers.
Vera Camera Motion supports a broad span of Blender releases, from the 2.8 series through 4.0, and is released under the GPL license. Documentation is included, a demo video is available, and the developer notes that reported bugs are addressed quickly.