Advice would very much depend on your experience and budget....
A Yam clavinova or a Roland Workstation (both about $2000) would be my first choice.
Sound is as good as any grand plus many many rhythm patterns and preset sounds built in and MIDI in OUT capability....reasonably portable...set up time a few minutes. They both have a steep learning curve and take a while to master re programming and accesssing all the functions.....due to all the options available touch screen and various shortcuts and menus to wade through.