A Soft Murmur - Ambient sounds to wash away distraction.
Blanket - Improve focus and increase your productivity by listening to different sounds. Or allows you to fall asleep in a noisy environment.
Noizio - Feeling that the noise of the big city is too much for you to bear?
NVIDIA RTX Voice - NVIDIA RTX Voice is a new plugin that leverages NVIDIA RTX GPUs and their AI capabilities to remove distracting background noise from your broadcasts, voice chats, and remote video conferencing meetings.
MyNoise - Custom shaped online noise machines. Many Many generic sounds
SoliCall Pro - Removes noise & echo from any VoIP call. Can also be used for call recording.