I got different answers every time, some confusing, some clearly impossible. After doing the research, talking to people who made it, and going through parts of the process myself, one pathway stood out as the most accessible for most Nigerians.

The easiest way to migrate to Canada from Nigeria is through a combination of:

Study Permit ➡️Post-Grad Work Permit ➡️ Permanent Residency (Express Entry)

I know it sounds long, but it works, and thousands of Nigerians use this route successfully.