Anyone Able to Recommend a Doctor re: Help Managing Vasovagal Responses?

Not too concerned with location – will go wherever I need to.

Sort of an obscure discipline of medicine but I'm looking for a rec for a doctor that helps people manage this/avoid it being triggered. I think technically it sits under cardiology but I suspect many PCPs also prescribe for it (typically a sedative I think?).

Have had some issues with blood draws and would just feel better having seen someone that can help me overcome those.

Thanks very much in advance.