I'm late to the party again, but here is my tierlist.
Best - Katie. Too good for Elmwood, frankly, super nice, very proper girl. Some day I'll throw some Gorilla scalps under her feet.
Waifus - Naomi (would be right there with Katie prior to Ep. 4, but is now only here), Tashley (I like their exclusivity thing, great gals), Dr. Riley - seems to be a nice lady.
GF - Sole Paris. The only girl among the 18 MGs of Elmwood who I think would make a great GF but I'm not sure about long-term.
FWBs - the cheer squad. They are all about fun, and that makes them good for fun only. Chelsea could be a great "main" partner for a playboy MC, but that's not something I ultimately go for, even in AVNs.
FZ - To me, Violet is a 'bro', Taylor is the good leadership figure, and Saki feels like a younger sis. I also don't give up on the nicer lesbian, I feel I could be friends with her if her partner wasn't so bitchy…
Avoid - I don't feel like getting to know characters who aren't nice to the MC. Whatever shit they have in their lives, it doesn't justify letting it onto others.