How much lens do you need to support?
I've previously used a Manfrotto 694CX carbon fiber monopod with the 234 tilt head (and a Wimberley C-12 clamp on top for AS plates). Sturdy, light, pretty smooth and supports up to a 70-200/2.8 or 100-400 with a gripped body.
I currently have a Really Right Stuff MC-34 carbon fiber monopod with the MH-02 Pro head. Simply awesome. Supports my 1D X + 600mm f/4L IS II just fine.