Meh. Sally could be interesting but don't really care much for Heather. Honestly, other than Quinn, Riona, Camila, and Nicole, the only other side girl I'd be interested in is (a clean) Arieth. She is the town bike after all, so you gotta have a ride at some point.
(Oh, and KRJ.
)
Chad isn't actually being blackmailed by anyone. It's never stated by him or even suggested at any point. He simply got sent something, most likely compromising pictures like the ones Dawe received, but it's not blackmail unless he's being made to do something and here it seems he just got angry about it and, for some reason, assumed the MC was behind it.