Whether you are thinking of renting or buying a house, the question is how much can you afford and are there ways to save money while choosing a nice place to live. You'll always need somewhere to live so this will be a decision you make more than once in your life, governed by how much space you need, where your job is, if you live with family, ecetera. Using the US as an example, there are real estate brokers in places where you are looking, as well as online websites to look at properties represented by brokers. So for example, looking at New York City, there an online real estate website I have heard about, StreetEasy.
There will be others targeting people in different situations, if you need roommates or have other requirements like students living close to their school.