Twice
I personally think, Twice has the most various types of visual among the other girl groups
My personal preference is Jihyo, and my friend's is Nayeon
Oh My Girl
The same goes to Oh My Girl. My favorite is Mimi and my bias-wrecker is Yoo A
WJSN
Girl groups that have different types of visual are usually the ones that have a lot of pretty members in it. WJSN is known for their visual line Bona, Seola, and Luda. However, my favorite is Yeonjung.
IZONE
IZONE has a lot of different types of visual. They have the fancy type of visual, the innocent type, adorable type, model-like type, etc. My favorite is Kwon Eunbi and Sakura.
Lovelyz
I remember Lovelyz becoming a hot topic in Theqoo several times for their visuals. My favorite is Yoo Ji Ae.
-Mina, Arin, I don't know, Minjoo, Yoo Ji Ae.
-Mina, Jihyo, Bona, Wonyoung, Ye In.
-Tzuyu, Jiho, Luda, Ahn Yoojin, I don't know all of their names...
-Nayeon, Binnie, Seola, Sakura, Jisoo
-Sana, Binnie, Luda, Kang Hyewon, Ye IN.
-Chaeyoung, Jiho, Seola, Kim Minjoo, Lee Minjoo
-Sana, Jiho, Seola, Kwon Eunbi, Jin.
-Jihyo, Arin, Luda, Wonyoung, Minjoo
-Tzuyu-Sana, Arin, Sakura
-Tzuyu-Jeongyeon, Cheng Xiao-Bona
-Mina, Arin, Bona, Minjoo, Ryu Sujeong
-Sana, Arin, Seola, Wonyoung, Kei
-Nayeon, Arin, Luda, Kim Chaewon