Idols who when they are in the center they complete the group and give the group it's flavor? it doesn't have to be an official center, just your preference.
For me they are...
Jang Wonyoung- When she is in the center, Iz*one feels like a bouquet of 12 roses
Jeon Somi- say what you want about produce groups, but they know how to find a damn center
Im Yoona- The original face that comes to mind when you think "center goddess"
Hani- She has that pull factor, at first you want to watch Hani, then you stay to watch the whole group's stage
Kim Hyuna- the definition of a stage genius, she just can't help but be the most captivating one whenever she's on stage
Kahi- since the mmtg performance more people are remembering and discovering the greatness of this queen. ever since she left the group after school felt incomplete.
Kim Jennie- perfectly portrays both the "black" and "pink" sides of blackpink's concept
Shin Ryujin- She's able to express the charisma of the group even with weird concepts
Irene- Captures the classiness of Red Velvet's image as an SM girl group
Im Nayeon- even with their original concept absent, TWICE retains the TWICE vibe with Nayeon in the middle
