Simply dont go for that purpose.
You got a visitor visa to visit canada and leave at end of your trip.
If you try to go find a LMIA by paying someone, you will end up creating issues for every genuine visitor coming to Canada. Its not as easy to get a job and start working on a visitor visa. Even if you are highly skilled person, Canadian employer wont be interested in hiring a visitor and going through LMIA process.
1. You can apply online for jobs from your country and get a employer who is willing to apply a LMIA for you. Apply for WP from your country and come for work.
2. You should not be immigrating on a visitor visa, this will be hussle for you and for every genuine visitor.
3. You can go for express entry or PNPs to immigrate properly.
Sorry to say, but people like you have made the visit application a real problem for every genuine visitor coming to Canada.
Data science is a real thing, IRCC can see that people are coming on visit visa and applying for asylum or applying for study/work permit within Canada. Once they have this info, they will look into each genuine visitor from a immigrant intention eye and create unnecessary strict policies for everyone.