Guild Wars 2

Basically, take the male horns, and modify them to look feminine. Make them smaller, smoother, sleeker, and with a slightly varied shape to be distinctively female. Then, take the female horns and make them masculine—more ridges, textures, thickness, and length.
Below, I have traced two male horn sets from screenshots (marked by the dashed line). Within them, I have sketched a possible female version. Since the version remains within the bounds of the original design, perhaps this could help avoid clipping issues.

I added this to suggestions—if you like the idea, follow the link and show your support!

https://forum-en.gw2archive.eu/forum/game/suggestions/New-Charr-Horn-Idea-and-Concept-Art/first#post1943733

er… when you’re talking about solid pointy things I’m not sure ‘feminine curl’ is really a thing. That’s more like ‘a hook’.

That’s beside the point. It’s just a rough 3-minute example of an idea arenanet could consider. If, by a one in a million chance, they took up this idea—their professional character artists would decide for themselves what makes “feminine horns”, and it’d probably be a lot more legit then mine.