Let’s go techno :
1. Phutura VSTi by PhutureTone
A nice clean interface, and a good sound. This is the only free “Alpha Juno” VSTi that can do a decent “hoover”. It can do hoover but not only ! There are some great bass and cool sounds in the factory presets.
2. SMC Joono VST
Created with SynthMaker, the project seems to be stopped.
It doesn’t really sounds like a Alpha Juno, but It can do interesting sounds.
3. EFM AlphaII VST
A synthedit creation. The synth is far from an Alpha Juno,
i don’t really like the sound but if you want to dig deeper, don’t hesitate.