Okay, I did a male page, as well:

http://www.believable3d.com/resources/hair_demos_male.php

Some qualifications: There are many male hairstyles I don't own, and many of the ones that appear on the page in question are not listed as intended for male figures. Moreover, some of the styles on the page do not have fits for M4, which is the figure I used.

As for the female hairstyles, some work better than others. I'll grant that some will look ridiculous in most renders. However, a number of them would be excellent choices if, say, you wanted to depict a rock band. (I really think Charlotta is excellent for this, and it will also work for other grungy types... it remains pretty much my fave hair as far as sheer usability goes.)

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Hardware: AMD Ryzen 9 3900X/MSI MAG570 Tomahawk X570/Zotac Geforce GTX 1650 Super 4GB/32GB OLOy RAM

Software: Windows 10 Professional/Poser Pro 11/Photoshop/Postworkshop 3