Have Ben live, Leia’s vision of his death changes, they get married, Reylos unite! Everyone wins.
Have Ben live, but slip away into exile to go be a wandering Robin Hood-type who tries to redeem himself by helping the downtrodden across the galaxy because there’s no way he would be accepted with Rey’s Resistance buddies after what he’s done
That would be… aggh! Can we have a redo on episode IX, PLEASE!?