I like the ‘Rey as balance’ theme, which I feel like the trilogy was kind of setting up, then didn’t exactly deliver on.

What if we end with a voiceover, as follows:

Pre-ending, we play up as much inner darkness (to save my friends) as possible
Rey visits Tattooine
We see her friends have come on the Falcon with her. She has a new family. (They stay on board)
Rey buries the lightsabers, ignites her own. It’s gold. Something new.
“Who are you?”
Voiceover begins, as we see her look away to sees the spirits of her adoptive family (Luke and Leia) and an implicitly redeemed Kylo Ren, then she re-boards the falcon
Voiceover is cut from some of her lines on TLJ during her training: “Who am I? Violence. Peace. Cold. Warmth. Death. Life. Dark. Light. I am balance.”
Falcon shoots off into hyperspace against the twin suns.
Final VO line, either “I am Rey” or “I am the Force”.