After a few years I still use Listary as my main search/launcher. It's very quick, has a very nice look and great system of filters and projects. There are problem with new version to be released, but I'm talking about version number 5.
Keypirinha - A lightning fast and flexible keystroke launcher for Windows. No installation required (portable).
Omnigo - Omnigo ensures a safer tomorrow by delivering security management, incident reporting, and public safety software for law enforcement, education, dispatch, and more
Alfred - Alfred is an award-winning app for macOS which boosts your efficiency with hotkeys, keywords, text expansion and more. Search your Mac and the web, and be more productive with custom actions to control your Mac.
TrackTik - TrackTik is a security workforce management software that allows you to view, analyze and control your entire security operations in one place.
Wox - An effective launcher for windows. A full-featured launcher, access programs and web contents as you type. Be more productive ever since. Wox is free for use and open-sourced at Github, Try it now! Download .
Blue Iris - Blue Iris is a high end security monitoring system that lets you view and control the feeds from all the cameras at your home or place of business.