I don't know of any tutorials specifically for the PolyBrute.
When you have enabled "Settings/MIDI/Enable CC on Knobs" the procedure to use it with your DAW is the same as for most synths being used as controllers, so any such tutorial should do. For starters you can assign CCs to Quick Controls in the track inspector, and many plugins have the ability to "learn" CCs from an external controller (Arturia soft synths can do this, so read the manuals for those if you plan to use any).