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).
Glyphy - Copy & paste fancy fonts + cool symbols ☞✺✐™
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.
Raycast - Fastest way to control Jira, GitHub and other web apps
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 .
MyPopClip - The most basic feature of MyPopClip is to select a text with the mouse to do the copy and paste action, saving us the usual Command+C or V trouble, but the real power of this tool lies in the use of its extensions.