Hrmmm......
That's hard, especially as I have quite a few characterthings that there are no published information on for various reasons, so I'll give a (very) brief summary of them with the names.
But here goes...
Mag (Impulsive, kinda nasty bearthing.) - Alphabit - Get Down (Audeka Remix) because it's very... chaotic, and thus suitable
One (Arctic Fox. Very calm and understated type mostly) - hmmm, this one's slightly harder. I guess Parallax by Direct
Slither (Manipulative snake.) ...... alright, I give up, no idea here
And that's all I'm going to try for now, I have plenty more but no ideas