I don't have one, but I think green-cheeked conures are kind of cuddly and nice? I've only seen them on Youtube videos, like Jontron's Jacques and JaidenAnimations's Ari. It might be how they're trained though, because I've seen a video where Jontron says his other green-cheeked conure (Cinnamon) isn't like Jacques. Like, Cinnamon would be mean to both Jon and Jacques at times, biting and nipping at them. He said he trained them the exact same way, but she turned out different haha (But he's said that the two birds get along, so I guess Cinnamon is the dominant one??)
And idk too much about Ari, but from what I've seen of him, he seems pretty nice ^^ Jaiden loves him, but she says he's a brat at times. But I think all birds can be like that. I know mine (a Cockatiel) can be! lol
I hope you find the perfect bird for you soon!