A good place to start with mastering the city hex crawl

https://bearded-devil.com/2019/04/09/how-i-run-a-citycrawl-campaign/

I never understood the warning against town adventures. Except that the characters are likely to get apprehended by the constaburlary. That can be fun too!

a good video on it https://www.youtube.com/live/iKcvykeSoWk?feature=share