[T.F.O.A]

Hi guys,i've been using westone um2 for over a year now,and so far i like it,i'm planning to upgrade it but not gonna go custom,and i wanna go with smth different (coz each earphone has a their own characteristic) so any suggestion? was thinking of headphones,but knowing those babies are power hungry monster and that means i'm gonna have to get an amp,i decided to stick with IEM,i'm open to any suggestion