Noisli - Noisli is a fantastic background noise and color generator for working and relaxing. Online soothing ambient sounds like White noise, Rain and Coffee Shop.
Hidden Bar - A ultra-light MacOS utility that helps hide menu bar icons.
Noizio - Feeling that the noise of the big city is too much for you to bear?
Bartender Mac App - Bartender is an award-winning app for macOS that superpowers your menu bar, giving you total control over your menu bar items, what's displayed, and when, with menu bar items only showing when you need them.
A Soft Murmur - Ambient sounds to wash away distraction.
Vanilla - Vanilla is a free Mac app that lets you hide icons from your menu bar.