Expand your possibilities and become a Specialty Instructor, follow a MSDT-prep course to be able to advance to the next level once you've certified 25 divers.
The major benefit of taking MSDT-prep or a Specialty Instructor course is all the tips and trics from the Course Director enabling you to teach a Specialty course off the bat. Additional benefits are a cheaper registration fee with PADI and less dives needed to certify as a Specialty Instructor.