There’s more than a few online group exercise music sites where you can purchase fitness music geared towards a boot camp class.
It would depend on the types of exercises and style of boot camp classes you teach.
I use music as background to the workout and we don’t perform exercises to the bpm. I pick from whatever I have on my iTunes and make a boot camp playlist. What I use for my classes might not fit the clientele that you have in your classes. (basically heavy metal rock) I also use my gym boss or my WorkoutMuse pro app for timed intervals.