I think at this point there is a way to make most of them still work. Lauren wants to be your "daughter," and kind of appreciates a firm Daddy who spoils her. Just make her the only daughter figure and be firm that you won't allow jealousy with these particular women. Tammy wants to be a pet, no jealousy there. Jenna and Vanessa, yea, that's just fun and MC kind of treats them both like princesses. Jenna might even have fun with being the new "mommy," or at least Daddy's girlfriend, figure with Lauren. Nice role reversal there. Goldy I don't know, she may also want a Daddy. Audrey's insecurities might be allayed by her getting pregnant. For the time being she would be the only one that has that with the MC, and even later on she'd still be the first. And she could definitely be the mother figure to most of the harem.
I get Audrey having the midlife crisis and shifting her look to compete, but I/ really hope that she at least changes back some of the way. I liked her sooo much better as a blonde. Plus it made her stand out more.