Toni Topaz is a competitive eater.
Toni competes with Jughead at the Riverdale Winter Carnival cupcake-eating contest.  She later helps punish Archie for his "summer dating quota" by ordering a lot of food at Pop's and making him pay for it. She is also a member of The Bettys, making her debut in China when most of The Archies were delayed. 
In Archie #17, she comments that if Archie doesn't snatch up the "hot chick" texting him, she will; she is also among Veronica's admirers on the cover of Archie #19. She is also apparently attracted to Sayid Ali , suggesting that she's bisexual.