Are there any very-qualified physicians certified in non-surgical management of hair loss for post-menopausal women?

I am 68, have always had thin hair, but have noticed slight, general thinning overall of my hair, (maybe especially at the crown, but not sure) for a few years now. I never knew that there was anything that I could do about this, as i just accepted that this was just part of being post-menopausal aging and not willing to take HRT. Can PRP and/ or laser therapy or anything else help me? I can't take minoxidal products, as my BP is nomally not higher than 90/60. so I don't want to risk AE's.