How to choose between Jill, Sage, Isabella, Maya and Josie in episode 8?
If you prefer the naïve, completely loyal, and sweet-to-a-fault type with a beautiful face and killer body, choose Jill.
If you're up for the challenge of taming a wild horse of a woman with a beautiful face and killer body, choose Sage.
If a mysterious past and animalistic sexual prowess don't scare you away from a mature woman with a beautiful face and killer body, choose Bella.
If you're intrigued by the combination of a playful girl-next-door and an enamored yet vulnerable converted lesbian, each with a beautiful face and killer body, choose Maya and Josy.
If you can't bear the thought of losing future lewd moments with, among others, a drug dealer/pimp, a big booty señorita, a petite Asian who practically dares you to make her cum, a Harley Quinn wannabe, or the hottest fucking stripper mom you'll ever see, then choose Others.
If you simply meant "How does the game determine the available LI choices?", then follow the walkthrough in the OP.
EDIT: "vulnerable
converted lesbian" Better,
sixart?