You manage every kind of city in exactly the same way.
Every city needs citizens. To increase city's population you have to build flats - each one gives you 15 citizens. They're important, because they increase limit of units you can create. Even more - when your people work in factories, they generate money for you.
You can biuld workplaces in the city. Thanks to one factory your income can increase at least by 400 sporylions per minute. But remember - factories decrease happines level, making your city vulnerable to enemy propaganda vehicles.
To stimulate citizens' happiness you have to build entertainment buildings. Watch the happiness indicator to see, if these constructions are needed or not.
It is not only important what you are building in the city - it is also important where you are building it.
You have to keep in mind, that buildings are connected with green and red lines. Green means - it causes happines, while red - sadness. Try to locate your constructions in a way allowing you to maintain the satysfying happines level.
Tak a look how does it look like in a game:
There is a third way of connection - blue one. This indicates cash flow - 400 sporylions per minute.
A good player is able place buildings in a way that helps him gain resources he needs right now. Buildings once bought you can relocate as much as you want - so try to experiment with their configurations.
Notice thate besides creating building and vehicles - you can also plant trees, compose anthems and change outfits of your species. You can do it - but it doesn't affect the gameplay.