Ironically GH has the most prominent black contingent these days, with the Ashfords (Curtis, Jordan, and T.J., the latter of whom I believe is recurring) and Trina. I think they still show Aunt Stella, Felix, Trina’s mom, and Epiphany, all recurring. Parry Shen, who is Chinese-American, still recurs as Brad.
Y&R has Lily, Devon, Nate, Amanda, and Elena. Lily is only one with a story, with Amanda sniffing around Billy. They also have the Rosaleses (Lola and Rey), Mal Young/Angelica McD leftovers who have been greatly diminished under Griffith/Morina. (Neither has been that well-received.)
DAYS has Abe and Lani, Eli, and Gabi and Rafe.
B&B pretty much only has Zoey, with Maya, Carter, and Justin popping up every blue moon.