Typical regimen for women?

[25 going on 65]

Hi. I'm asking this on behalf of a woman I know who has suffered female-pattern hair loss since giving birth to her first child.
Basically I'm wondering if there's any kind of standard, reasonably effective regimen for treating female hair loss like "the Big 3" for men. I've heard a little about Spiro, but I don't know how or if it works for hair loss in women? Is that even its purpose, or is it more to counteract side effects from other treatments?
And other than that I've only heard of minoxidil and keto shampoo. I feel pretty lost but really want to pass on some good advice to her.

Thank you in advance for any time and help!