FLStudio as a plug in. But I haven't found a fix for it. While using FLStudio as a plug via AU or VST the first beat never plays. It seems like there may be some kind of latency ...
FLStudio 20 now that it is finally released.
However, when I try to run old projects that I created on the Windows system, it fails to boot the 32bit VSTs. I have the same plugins re-installed on the OSX side ...