General terms:
* Baton twirler: This is the most common and straightforward term, especially for someone who performs with a baton in a marching band or competitive setting.
* Baton performer: A more general term that encompasses various uses of a baton, such as in dance or circus acts.
* Baton user: A neutral term that simply describes someone who uses a baton.
More specific terms:
* Drum major: This refers to the leader of a marching band, who typically carries and waves a baton.
* Color guard: Members of a marching band who handle flags, sabers, and sometimes batons.
* Circus performer: A broad term, but could be used if the baton is used in a circus act.
* Choreographer: Someone who creates routines for batons, particularly in dance or performance settings.
Informal terms:
* Baton twirling expert
* Baton master
* Baton enthusiast
The best term to use will depend on the specific situation and the level of formality required.