what is the best service based industry to get in ? placement ageny is an example , what more ?

Answer 1

The question makes no sense. The best FOR WHOM? Mass-tort law is extremely lucrative, but you have to be a be licensed attorney and be well-capitalized (it's not uncommon for class-action lawsuits to cost millions of dollars). Hedge fund management is good, too, but do you have skills to manage a hedge fund?