Bontrager Elite Aero Handlebars, the carbon fiber XXX Aero is also compatible with clip-on aerobars. I have the Alu on my bike with the RedShift Sports Quick Release Aerobars.
The Profile Design DRV/AEROa (man, what a name) is an Alu aero handlebar that’s clip-on compatible.
I’m trying to find confirmation, my recollection is that the carbon fiber 3T Aeronova supports clip-on bars… but the Alu ‘Pro’ model should be fine.