For this, I would have to say my little brother.
We have a 12 year age gap but he is honestly my best friend. To watch him grow and mature over this somewhat of a short time span has been fascinating in itself.
He has this amazing ability to crack a joke at any given moment, just to cheer someone up. For a 9 year old he has emotional intelligence way beyond his years & is always seeking out ways to help others, even when he is unhappy himself.
He has so many qualities that I wish I possessed but that just makes me love him even more ❤️