Start by reading here
http://www.cic.gc.ca/ENGLISH/study/index.asp
Decide where you would like to take this course, which college, city or province.
Given this would be a fall 2018 start too early really to start doing much except read up although you could start looking into whether you might need to take IELTS in advance of applying for study permit, again too early given that has an expiry date. Be prepared to have available when you apply the first year tuition (approx 15-18k CDN) plus living expenses approx 10-12k CDN.
As for opportunities personally looking at the prospectus for such a course it seems so generic that would not make anyone stand out in a pile of resumes but thats a personal view. It simply is something to add to list of qualifications plus of course generally it can be a 2 year course which can lead to a 3 year PGWP so consider it as a means to an end to get PR if that is your plan.