City life, that is, food, clothing, housing, transportation, all the things involved can be photographed.
You can also take pictures of places to play, parks, scenic areas, playgrounds and other things. There are ancient buildings that can also be photographed.
If there are celebrities, you can also shoot their lives. If there isn't one, package one yourself.
Make a few more themes and shoot by theme, so you don't run out of content to shoot.