Women who "rock". Rock being the operative word. So far, at least half of those mentioned can not in any way be considered rock and roll artists. My list would include... Amy Lee, Grace Potter, Loise Post and Nina Gordon from Veruca Salt, Sandra Nasic from Guano Apes (awesome band from Germany) and lets throw in Maria Zardoya of the Marias for good measure. Any more from this century that could be added would be interesting.
Women Who Rock
There is an excellent new docuseries on Amazon Prime called "Women Who Rock".
This series goes pretty much back to the beginning and continues through today.
Highly recommended!!!