I might have added GX but they aren’t kpop. I’ll go with IVE, they seem to be dancing to their own tune without any particular pretense. KIOL too but they have more early 90s attitude feel
How did you come up with IVE and KIOL being like brats? IVE embodies high classs pretentiousness and KIOL is sexy/sensual. I think Itzy is brattier than IVE and KIOL combined.