I myself would prefer none of the girls to end like that, but if any HAS to I think Alice seems the most likely candidate (What with literally investigating a prostitution ring and the fact that she may or may not be already practicing casual sex online if that first scene of Part 1 is actually taken into account) and the one I would care the least for it to happen to, as she's basically just an OC with Alice's looks and practically nothing like the actual character, lol.
However, as mentioned before that will very likely all depend on Fujino's current decision, like, there is non-zero chance of Suguha or Shino (Or worse, both) ending up like that if Hebishima stays, but practically none if he's gone and they're folded into Inoda's plot given how possessive he has been shown to be, like when he even went out of his way to make Kyouko cut contact with all her fuck-boys after he started fucking her.
At this point all we can ready do beyond speculating is waiting to see what he does with the current poll/questions.