I can't fault a person for wanting a pump-action or semiauto shotgun. I know I've got both types.
This question reminded me of this Clint Smith (ThunderRanch video from a few years back):
https://www.youtube.com/watch?v=-NSLxxDWpOI
In the video, Smith shows working a single-shot break-open shotgun commenting, "I need to run the gun I got".
Whichever shotgun type ends up being bought, do try to get some expertise with it, whether it's shot selection (buck to slug); moving and shooting; reloading and unloading the gun; and the basics of stance, shouldering, and shot spread at a given distance.
Here's another video advertising a shotgun training DVD set you may want to obtain and view prior to buying a particular brand, model, & type of shotgun:
https://www.youtube.com/watch?v=1XCv0X6SqUg
It's the older Magpul video with Costa and Haley teaching and showing how to run various shotgun types to a class.
Here's a current Amazon.com ad for this video: https://www.amazon.com/Magpul-Art-Dy...+shotgun+video