Bit of mystery but also girls to debate over

Hello! A friend and I who normally suggest VNs to eachother want to find a new one to read at the same time.

Wed like there to be plot points to speculate on, he is currently reading Higurashi which I have finished and theres obviously a lot to speculate there, and I am reading Grisaia and I'm speculating on the behaviors of the characters.

We also like debating who the best girl in a given VN is so having that be possible would be nice too!

I cannot read japanese so a translated one would be needed Thank you!