* Fitness Instructor: A general term for someone who teaches exercise classes.
* Personal Trainer: Works one-on-one with clients.
* Group Fitness Instructor: Leads exercise classes with multiple participants.
* Yoga Instructor: Teaches yoga classes.
* Pilates Instructor: Teaches Pilates classes.
* Zumba Instructor: Teaches Zumba classes.
* Spin Instructor: Teaches cycling classes.
* Aerobics Instructor: Teaches aerobics classes.
* Strength and Conditioning Coach: Often works with athletes.
* Exercise Physiologist: Has a more clinical background and may work with individuals with health conditions.
The best term depends on the context.