Reverb
Viator DSP Reverb is a free reverb plugin for macOS and Windows.
For Mac builds, unzip the download, copy either the .component file or the .vst3 file (which ever you normally use) and paste them into your plugins folder.
Go to Finder -> go ->Library/Audio/Plugins
For Windows 10, copy the vst3 file and paste it into your vst3 folder