What’s a story where a character is a “Chaotic Good opportunist”?

Basically, I'm wondering if there's a character in fiction that wouldn't mind helping someone without a reward, but will always check if the person-in-need is able to give a reward

And if the person-in-need says they can't give anything, the opportunist won't mind since the trust and gratitude they gained from helping the person-in-need is its own reward

(… and because that trust and gratitude will likely eventually lead to the person-in-need giving the opportunist an actual reward in the future lol)

Also, feel free to tell me if Chaotic Good isn't the correct Morality Alignment for this type of character