Is there anything comparable on itch?
No. Oh, maybe one of these games might try to promote their client on Itch. But by the very nature of the genre, such games are not on Itch.
Itch does not have the infrastructore for in-app purchases.
Itch is not optimised for mobile games.
Itch mostly has indie games. Such an enterprise is maybe an indie game in the technical sense, but not as most players here would understand it.
Itch does have the monster-girls tag though. But beware, that tag ignores your account's adult settings. There will be naked pixels shown to you, if you enter it manually. And only 2 of those games are multiplayer, if you look for multiplayer games. But 140 of the 500 state that they can be played on Android.