The usual fan-edit idea seems to be to show Bail Organa just as the laser hits (which Ady also did in his "deleted scene" version.)
Why not show Bail Organa looking up and seeing the Death Star in the sky sooner? There could be a brief shot of him on the balcony (where he brought Leia at the end of ROTS) looking up and seeing it approach... then cut to the space shot of the Death Star getting closer to Alderaan, then the scene would proceed as normal. Just a thought.