I have two different headsets for this purpose. Firstly, I have a Heil Proset.
I find that using the Heil Proset can considerably increase the intelligibility of received signals. Furthermore, because it’s lightweight, it’s comfortable to wear for long periods of time.
Heil design and build their own microphone inserts which are tailored for radio communications use.
The second headset is an aviation headset – read about it here.