There isn't much to choose from in Bozeman. I think the nicest, by far, is the former KOA which is now the Bozeman Hot Springs RV Park. That being said, it is by no means great. The other two in the area, the Bear Canyon Campground and the Sunrise Campground, both are very lacking, in my opinion. Bear Canyon has a very active railroad track nearby and Sunrise is right on the highway in the middle of a swamp. But then again, you will going to a football game, not looking for a secluded getaway.
Bozeman has always been at the top of the my wish list for a place to build a quality park. Unfortunately, the city of Bozeman and Gallatin County are probably the worst government entities to deal with this side of the California border. When I seriously looked into a possible tract to develop I learned it would likely cost upwards of a quarter of a million dollars to get thru the permitting process, funding the required environmental studies and paying the "impact" fees. At any time during the process, the controlling agencies could pull the rug out. There is a long history of certain council people and county legislators using the review process to put their personal preferences into the projects. Things like changing the colors, the materials, the elevations and the layouts of proposed buildings. Making wholesale changes to landscape plans, down to the choices of flowers and trees.
In my opinion, to purchase a piece of property, likely costing well over one million dollars and then face the daunting task of navigating the permitting process that would take well over a year, al the time not knowing if the project would get green lighted is a fool's folly. So Bozeman continues to be an RV Park backwater.