Responses
https://www.mangago.me/read-manga/salty_lust/
5 clones, 4 tops, 1 bottom. Bottom only shows up very late into the story though and they only sandwiched twice(?) near the end
https://www.mangago.me/read-manga/500_nen_no_itonami/
https://www.mangago.me/read-manga/void_zariya_ranmaru/
These are two I highly recommend. Probably not exactly what you're looking for, but exceptional reads.
Ok this may be insanely niche but does anyone have recs that have one mc and the ml is like. Cloned or sm. Or split in half(?) But one of them is topping mc and the other is bottoming for him?