Sampleson and several partners just released a free, modeled B3 VI. The distribution file has installers for Win, Mac and Linux. The Win version has 32- and 64-bit VST2 plus a standalone executable. It’s a #StayHome freebie with a link to a COVID-19 info page, but that in no way detracts from its value. It seems pretty responsive to me, and comes with some nice presets.
I’d love to hear from those of you who gig with B3 VIs.