When the underlying sequence allows it, I sort of fake the randomness with a bit of polyrhythmic sequencing.
For example with a simple techno kick - hat - snare pattern, I‘d let the track with the kick have 16 steps, the track with the hats have 20 steps and the track with the snare have 24 steps. That way they‘re still rhythmically the same, but you can program some slight variations that drift in and out of sync.
Edit: re-reading this post, it sounded clearer in my head. Hopefully it still makes some sense, hahaa