Who Should Eat A Devil Fruit?

Who Should Eat A Devil Fruit?

We got hundreds of characters without Devil Fruit powers in One Piece, and seeing DF-less characters eat Devil Fruits has happened a few times:

Luffy, Law, Buggy, Kalifa, Kaku, BB, Sabo, or offscreen like Alvida, BB again, or Fujitora

Who else should eat a Devil Fruit? Be it for story reasons or simply cuz you would find it awesome to see a certain character with DF powers.
Characters from past arcs could return to the story with newly acquired DF powers, if so: Who? And what kind of DF?

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I'll start:

Spoiler: Rayleigh, Garp, Shanks

I'd love to see one of the Haki Big 3 (Shanks, Garp, or Rayleigh) with a DF, simply for the fun of it. I could even imagine a story twist where one of the 3 eats a DF to counter an enemy's DF and help Luffy, before dying himself. E.g. Rayleigh at the end of the series, in his old days not being the most physically fit anymore, wants to help in the final war with all he's got, so he takes a DF: "I've never thought about eating one, but for 1 last fight and for the new era, here we go!" BÄM!

Will More Straw Hats Get Devil Fruit Powers?
Devil Fruits Eaten By Different Characters