Wish it was the "best" of both worlds...

But current day stagepiano/attanger workstations all combine a low end stage piano with a low end arranger...

The korg havian 30 is build on a pa300 arranger
Yamaha dgx 660 combines yamahas lowest tier p45 with a psr 400 series arranger
Casio px 360/560 arranger part is not even worth mentioning
Same goes for the pa500, far from high end arranger, where they added a better piano sound and 88 keys

So far the only company delivering on this was the GEM sk880 which 20 years ago indeed was the best of both worlds (stage piano/synth/arranger)

If you want "almost" the best of both worlds, then there only is the yamaha CVP 709, but thats not a portable version... however, if yamaha would make a stage piano version of the CVP709 follow up, now that would be interesting..

If you. Urrently want best of both worlds... you should go stagepiano+arranger module+laptop. With only Ketron SD40 being a viable choice as the arranger module...