You can get a Work Permit (no LMIA needed) if you qualify to do the job. This is a pathway to permanent residence status in less than 3 years. The whole family can come to Canada. The spouse can work and the children can go to school.
Eligibility Requirements Include:
Education: at least 1 year of post-secondary education completed.
Language: CLB 5 minimum in English or French (must be able to communicate well in order to do the job).
Applying for jobs in Canada from Nigeria may seem a little daunting a task but you must keep applying and applying for any available job openings. The more your resume resembles what Canadian employers are looking for, the more you are likely to get their attention.