What courses or certificate can you get to land a decent job?

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there are so many white collar type jobs with just few requirements like obtaining a certificate or license. I heard like insurance agent, phlebotomist, paralegal or preparer tax.

thing is Im in late 20s now and by end of the year I'll be 30, like I just don't see myself pursuing a bachelor's degree right now. it's a long journey. I wished I could find a good job that is white collar based or entry level in a good company and the company could pay for the schooling to get higher education. I don't even mind getting an associate degree but thing is I just don't know what to pursue. the option are so endless and it's like I don't wanna regret getting a degree that has no job opportunities value.