Was unable to reply earlier, off on work travel.
Why consider this?...family history of high Estrogen levels, elevated weight gain as a result, and some history of breast cancer. Testosterone + AI is used post-breast cancer surgery to lower Estrogen levels, and help to reduce the risk of re occurrence. This approach is also now being used as a preventative measure. Testosterone therapy is also widely used in Europe as a treatment for post-menopausal women, and not Estrogen therapy. Testosterone is the most active female sex hormone, not Estrogen. The problem women have is in line with the attitudes exhibited in the comments so far in that replacement therapy for women is for virilization, transgenderism, or serious pro bodybuilder, are off the mark.
So as for goals, she would like to lower her Estrogen levels and reduce her risk of breast cancer, she would like to lose some body fat and build muscle more readily. Her diet is on point, as are her workouts 5'4 125lbs, weight workout 3x per week, 1hr sessions.
As an fyi...I use T with an AI for myself due to low-T and have done for about 3 years, I have read and received a lot of good advice on this forum and hope to continue to do so.