BC careers to invest yourself in that require little to no post-secondary

What are some worthwhile 6 month - 1 year certificates from post-secondary programs that are actually beneficial in British Columbia today? Also, are there any careers that are entry level and only require on the job training but the pay is decent to start and there's a lot of room for growth in that particular industry?

This post is made for anybody looking to switch career paths but do not have the means to spend a bunch of time, money, and upgrading at a local university or community college.