I've Passed Cisa Exam, Which Exam Shld Be Next

Hi guys,

I'm tryin to take my career to the next level. I've passed the CISA exam and i'm tryin to decide the next best exam to write. I'm currently considering either writing CIA (Certified Internal Auditor exam), CISSP or maybe a Microsoft, Cisco or Oracle exams.

Would like recommendations on the best course of action to take which would benefit me most as an Information Systems Auditor in naija.

suggestions are welcome.

NB. I currently work as an IT auditor in an audit firm.