Mamamoo Moonbyul
G-idle Soyeon
EXID LE
Blackpink Jennie
Twice Chaeyoung (she's so underrated i think she's a lot better than what twice songs show. hope she'll shine more in the future)
I like JuJu from GeeGu (underrated girl group), Hyuna from 4Minute, Lisa from Blackpink, everyone who raps in Dreamcatcher. Honestly, I love female rappers more than male rappers, I wish there were way more than there are.
EXID - L.E
MAMAMOO - Moonbyul
AOA - Jimin (so underrated)
CLC - Yeeun
4minute - Jiyoon
2NE1 - CL
Dreamcatcher - Dami
also Soyeon from (G)idle is a top rapper although I don't stan (G)idle so much anymore...