Freeware - dearVR MICRO VST Plugin

https://www.dearvr.com/products/dearvr-micro

Create mind-blowing audio productions for headphone playback Immersive audio productions need a 3D panner to freely position sounds everywhere in a three-dimensional space. With dearVR MICRO you create spatial audio tracks quickly, efficiently, and with the best possible audio quality by Dear Reality and Sennheiser AMBEO. The VST3/AU/AAX plugin supports all DAWs and is available for free!