Generate Studio Tracks in REAPER with the new BiabVST.
This works well with ReaTrak Studio
The Win version has just been released and Mac will follow.
The basic version also includes the BiabVST https://www.pgmusic.com/bbwin.packages.htm
These are top studio session players right in the vst.
There's still a few things needed doing to improve the VST
but that should happen soon.