Most of the time, there will be some trade-offs in hair transplant surgery.
For example, I have curly hair with an average graft density of 65 per cm2. The curly hair helps with the coverage, but my hair-to-skin contrast is very high.
I have dark curly hair, but as a trade-off, my skin, especially my face, is white for a Mediterranean/North African guy.
If you are, for example, Scandinavian blond, your hair-to-skin contrast is lower, which can help you get a nice visual appearance.