I think you are talking about the government job exams. Now the best government job exam for you is entirely dependent on your ambitions and your passion.

Thus saying the best job for you is impossible until and unless you provide more specifics.

Now if you consider the different areas of government jobs then you will find two sectors one if Technical and another is Non technical.

Now Technical jobs mainly comprises of Engineering graduates and diploma holders to be eligible for this examination. Some of the popular exams are SSC JE, RRB JE etc.

Now if you come to non-technical jobs then also there are two categories. One have the eligibility for graduates and another for 10+2 pass or 10 pass. Now the graduates gets more responsible positions depending on the examination they appear for. SSC CGL is one of the most preferred exams given by aspirants of government jobs who want to work as a grade B officer in different sectors of the government.

Now if you want to be a civil servant or your aim is bureaucracy then UPSC CSE and state PSC exams are the most important for you. This also requires a graduation degree.

Now there are government tactical forces and police forces. For tactical forces you have to go for Army, NAVY, AIRFORCE etc. For Police forces and laws and regulation you have to go for Police service examinations or for CBI/IB examinations which are for intelligence (CBI recruits through SSC CGL).

Thus you have a wide spectra open, the only problem is you have to choose the way you want to pursue and what satisfies your ambitions.

To know about the government service examinations visit the link provided below:

https://competition.careers360.com/articles/sarkari-exams

I hope this answer helps. All the very best for your future endeavors!