Betta Fish: Just got this guy & what a transformation in just a few days!! Any suggestions for names?

Also he's quite friendly, not afraid of the net, my hands, etc. He's very chill compared to my other Betta who's nervous when I'm using the net and nowhere near him. He is a plain mix & got him because I felt he might be there long. Much fancier fish to pick from. So I wonder if the breeding makes a difference just like dogs and cats.