Here's a quick shot of a setup in a gym from a couple of weeks ago - Using a Lav mic and a boom with a sound man is great as it really reduces the extra workload of worrying about sound as well as everything else. When you're shooting with 2 cameras as well this is particularly important.
This shoot the whole back wall was covered in Mirrors so as well as light reflections I had to consider reflections of all the stands as well - no easy feat but the final shot looked pretty good. I'd like to have moved the hair light over a bit more but it just would have been seen in the mirror
Shooting on Sony FS7 and A7Sii. Lens Sigma 18-35 1.8 Art and Sony 28-135.