I have Hypotrichosis, what would you recommend for me?

The first picture is with a buzz cut, the second picture is with longer hair.  As you can see, as my doctor told me, I don’t have a lot of hair so I can’t let it grow out or it looks terrible.

If you like the buzz cut which solves the lack of hair, I would recommend Scalp Micropigmentation, see here: https://scalpmicropigmentation.com/bold-shaved-look/  This approach will give you the look of a full head of shaved hair and completely hide the limited densities of hair that you have.