Given Kristian's preference to stay in his hometown while working for the government, a career in Planning would likely be the best fit. Planning often involves local government roles focused on community development, urban planning, and zoning, which typically allow individuals to work within their own communities. This way, he can contribute to his hometown without needing to relocate.
On the other hand, roles in Revenue and Taxation may involve interactions with broader state or federal agencies which could require some travel or movement. Regulation and National roles are more likely to be centered in larger urban areas or at a greater distance from his hometown.