Hello, the categories and their respective feeds and settings are all listed here
https://github.com/kagisearch/kite-public/blob/main/kite_feeds.json
If you own a github account, that means you could suggest some changes directly there
If not, you may mention some suggestions here and I'm sure somebody would pick it up
I believe drilling down into cities, might not be practical in the current version of kagi-news but with future UI/UX improvements it might be possible, so probably it would be easier to keep suggestions on state level