SSI Master Diver

Im planning on (hopefully) working at a dive club sometime in the future. To do so, I feel like a master diver level recognition would be nice. For this i need to choose 4 specialties amongst the following:
- Nitrox

- Deep Diving

- Buoyancy mastery

- Navigation

- Dive theory

- React Right

- Dry Suit

I feel like React Right and Navigation is almost a lock and looks good on a CV. On the other hand, buoyancy mastery sounds like something I will aquire over time (and tbh I have around 150 dives under my belt so my buoyancy isnt terrible).

Please give your opinions, I could sure use them thanks