Stats - Simple macOS system monitor in your menu bar.
Autoruns - See what programs are configured to startup automatically when your system boots and you login.
iStat Menus - "An advanced Mac system monitor for your menubar."
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Stats Panel - OS & Utilities, Network & Admin, and System & Hardware
Glary Utilities - The No. 1 Free, Powerful and All-in-one utility for cleaning your PC