which sap module should i do

hello everyone i need you help as i want to make my career . I had 2 years of experience in data networking , good knowledge of linux and just have basic know of java, no prior exp in programming

suggest which sap module suits to me , what are job opportunities in it

if i do sap training from authorized training center does it make any difference for me .

which sap training center provide the good quality of training and good placement