iStat Menus - "An advanced Mac system monitor for your menubar."
Dozer - Hide menu bar icons with ease ✨
iStatistica Pro - System monitor. Reinvented. 💻 🖥
Hidden Bar - A ultra-light MacOS utility that helps hide menu bar icons.
Stats - Simple macOS system monitor in your menu bar.
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.