The annoying thing is that it makes no sense to do this because there are plenty of non-male or non-white leaders to pick from anyway.
My favorite empire is the Ajuuran sultanate that was a very powerful african sultanate in modern day somalia. It traded as far as china and it had many victories over great powers like portugal.
A great female leader that actually existed was queen boudica, one of the greatest celtic anti-roman rebels. She led her people and dealt a lot of damage to the roman invaders before she inevitably lost to the chads that are the roman legions.
Rather than blackwash or add in random women we can just look to the parts of history that already contain that.
Despite this her actions were greatly inflated by the title and main claim.
This contrasts with, say, the ancient Sarmatians, where we see female burials with actual weapons of war, and have contemporary accounts that women did fight extensively in battles. There, a figure of 20% would be roughly accurate.