Frisk would be a great bard, with that absurd CHA score. Not to mention, that haircut is totally optimized for poofy hats.
Frisk the Halfling Bard who in-game is like 20 and yet they look basically exactly like Frisk curently is as a ten-year-old because Halflings be small. They refuse to kill their opponents and so their spells focus mostly on confusing, calming, or incapacitating foes. They’re also pretty good at stealth thanks to their small size.