Takatsuki Kanako, Hanamaru's seiyu, just became my instant favorite among the aqours seiyu because I found she use to sing with a YT anime cover group channel I love... two her of her best solo vocals with them.
she even sang LL S2's ED as part of the vocals with them...
She also did covers of
Kill la Kill ED,
PETIT im@S ED,
Nyaruko san W OP,
Hataraku Maou sama! OP,
Zettai Bouei Leviathan OP, and both Little busters
OP &
ED.