Master piece, kanojo x kanojo x kanojo, Wagaya no liliana-san. If you want to add action or fantasy element I'll suggest Isekai harem monogatari, Youkoso! Sukebe elf no mori e, rance 01, kuroinu, Kyonyuu fantasy
How about Kuroinu? I would love to see the MC just slaughter Volt’s army and torture him 😈
Mainly due to the fact that those women did not deserve that fate (well, no one does but you get what I mean).