Rad/???

Decided to finally roll my first corrupter but can't decide what secondary to take. Does anyone have any suggestions on what pairs off well with rad? obviously /Rad fits thematically but I already have a /rad controller so would like to avoid that but anything else is fine.

Yes, they mesh pretty well.

Another possibility might be /Storm; I haven't tried it but they seem like they would mesh well. Freezing Rain would benefit the AoEs of Rad/, and you should be able to stack Cosmic Burst and Thunder Clap to stun even bosses.