Generally, there are many more course under Redhat. Select the one which you are more interested. In general, RedHat Certified System Administrator is the entry level certification which focuses on installation and configuration of a RedHat linux system.
Furthermore, other popular certification course are RHCE, RHCJA, RHCDS, RHCVA etc. Finally, after the completion of training, climb up your career in a professional way. If you are interested in this domain, then enroll soon. Implement the theory practically to experience a real time training. The training yield from this course will help you to coordinate with those collegues. Enroll into a course and unleash your potential.