A few ways of becoming rich without having a job are investing, start a high yield savings account, start a blog, get started in real estate etc.
You will need to work at first though to become rich but after awhile you could just sit back, relax and rake in the passive income overtime.
There are many bloggers out there who are millionaires but they worked very hard in the beginning for years and years before they became rich from blogging.
Some bloggers earn millions of dollars per year blogging from Adsense, Media.net, Affiliate Ads, Affiliate Products and services etc and even selling their own courses or E Books etc.
If you're good at investing in stocks and bonds etc then you can become a really rich person or even buying gold and then selling it.