In no particular order:
https://thearcadean.itch.io/corrupted-kingdoms
https://komisari.itch.io/heros-harem-guild
https://ncrow.itch.io/goddessess-whim
Those are the ones I've played most or all of. But here's some more well reviewed itch.io games...
https://runeygames.itch.io/harem-hotel
https://caribdis.itch.io/eternum
https://caribdis.itch.io/once-in-a-lifetime
https://stawer.itch.io/lucky-paradox
https://jikei.itch.io/mythic-manor
https://jestur.itch.io/ripples
Eternum is probably the most lauded, fwiw...
Plus there are more....