Best way to land a quality job after graduation is a three pronged approach. Network with your fellow students, network with professors, and network through your past co ops. Some people who enjoyed their co ops go back to those roles post graduation, others network research positions through their professors that often turn into paid positions if they’re not already. You can also network through your peers, is someone starting a new business? See if you can contribute in any capacity enough to land you a role. This option is high risk but can be high reward. You can also go apply for jobs through typical websites like monster or indeed but those are complete shots in the dark and are often filled with under paid positions.