Like others have said, supplements and homeopathic aids are a waste of money. Think about it. If they really worked, small busted cis-gals would be popping them like candy and the boob job business would be out of business.
However, you can still have real girly curves even with your concern about blood clots.
I have a blood disorder called Factor V Leiden. It makes me prone to blood clots. And yes, I've had a few. As you may know, estradiol (feminizing HRT) can increase your risk of blood clots. When I decided to transition, I did a ton of research. I learned that the risk of blood clots is much lower IF oral estradiol (pills) is avoided. Transdermal (patches and gels) and injections are the way to go. I went with the injection route.
Because of my Factor V and history of blood clots, my endocrinologist was still concerned about blood clots. She was happy to learn that I was already taking an anticoagulant (blood thinner) that significantly lowers my risk of clots. I've had zero problems with blood clots since I went on hormones in September 2021.
Hope this helps.