After 12th to have a good salaried job you need to go for higher education. Now if you want to go for Bachelors then you can go for BBA as it is a more of professional course and in this course there are job opportunities. Apart from this you can go for BCOM but after BCOM getting job can be harder for that you need to go for MCOM/MBA (MBA will avail you the maximum opportunity). As a result you have this options. Apart from this you can prepare for government exams such as UPSC CSE, State PSC, RRB NTPC, SSC CGL. For this examination you need to be a graduate. So doing a graduation course will open new opportunities for you.

For career after 12 visit:

https://www.careers360.com/careers/articles/commerce-scope-after-12th-counar

I hope this helps.