If you want a work permit, you will first have to find an employer who is willing to offer you a full time job. That employer will then have to obtain an approved LMIA. Once the LMIA is approved, you can then apply for a closed work permit tied to that specific employer.
You have to go through the same process as anyone else. There are no benefits to having a PR spouse - unless you are in Canada and your spouse sponsors you for PR using the inland process.