What is the best job oriented course for an eng grad. in com sc.? Cisco or Cloud or SAP or Oracle or Testing?

HI, I am an eng. Graduate in com science and working as freelance web developer since 2 years. Now i want to go in job sector where i will be considered as freshers. I am thinking about doing some course first. Which one will be best for Job Perspective?Oracle DBA or Cisco or Testing or SAP or Cloud