Just Install - just-install - The stupid package installer for Windows.
Windows Remix - Web-based batch software installer with zero dependencies. Recommended first visit after reinstalling Windows or buying a new laptop.
Scoop - A command-line installer for Windows
PDQ Deploy - Deploy software quickly with PDQ Deploy. It's simple to install just about anything to multiple computers on your network.
EMCO Remote Installer - EMCO Remote Installer allows you to perform remote installation and uninstallation of EXE setups and MSI/MSP packages and to audit installed software.
Aiiguide - Aiiguide is a library of more than 200,000 applications that you can download and install on Windows and macOS.