I have tested these free effects as 64 bit VST on Ableton Live and Windows 10, however they should also be available for 32 bit hosts unless otherwise noted.
OSB CHORUS from Oblivion Sound Lab is modeled after the Juno 60 onboard chorus effect. The default settings emulate the original but you can dial in more subtle or extreme chorus effect to your liking.
Blue Cat's Phaser is a free phaser that reproduce the vintage phasing effect with up to 32 phasing stages. The plugin comes in both mono and stereo version; the stereo version has an additional "spread" control for a deep stereo widening phasing effects.
MAutopan is included in the free effects bundle from MeldaProduction. It is a very powerful auto panner. Oscillator shape can be customized. It can be free running or synced to host. Has lots of presets and smart randomization.