Are certifications worth it while job hunting? - any advice?

I saw that many postings ask for a specific certification. There are 3 people counting on me, so I am trying to be careful. I would like to use funding if possible. Which ones are overrated?

A hands-on course with a project helped more than a purely online one.

Check a dozen job postings first. If most ask for the same certificate, it is probably worth it.