Social media marketing needed for mental health counseling agency

I am looking for a social media expert to help me promote my mental health counseling agency. I need someone to manage our Instagram account to ensure maximum exposure, but I need help creating content. Although I might not be looking to generate leads from social media just yet, it would be great if that was something that could eventually happen. So if you have experience with generating leads on social media, that would be a plus. I'm looking for someone who is experienced, reliable and available for the long term.