Best sounding last name?

I have a character named Kota (female) who is of an ethnicity I made up which comes with made up names, and so far her name is Kota Bor- (part of a last name) but I’m not sure about the last part of her surname, and I’ve picked out a handful. If background is needed she’s a fierce warrior who stops at nothing to achieve what she wants and is one of the enemies of my main protagonist. Here are the ones I’ve picked out:

Bor-Altandol
Bor-Anchin
Bor-Avarga
Bor-Khasar
Bor-Khuyag
Bor-Zhanzhin

If anymore information is needed, feel free to ask! Thanks!

Kota Bor-Zhanzhin!!!

Bor-Khasar!