This might be a long post but I'll tell you all your options. First. The big 3, Finasteride, Minoxidil aka Rogaine, and nizoral 1 or 2 shampoo. The big 3 is the first line of treatment that works the best for most. Then there is microneedling which helps stimulate growth. If none of the above help enough, you can use dutasteride which is basically a stronger finasteride. If still not enough then, The powerful 3. Oral minoxidil, oral spironolactone, dutasteride. This will kill baldness but has a high side effect profile. Then you have hair transplants and prp.
Just letting you know whats out there. You're a diffuse nw3. Finasteride and minoxidil could thicken up what you got and maintain. Hope any of this helps!