Hard to say really but I'd guess some are Long Road Home, Leap of Faith, Being a DiK, Parental Love, and Midlife Crisis. There are many others too just can't think of them right now.
Great game but there is a flaw. Having that many characters means having to wait a long time for content for specific characters. I wouldn't change it, just wish the dev was superhuman and could put out 4 times as much, 4 times as quick.
Biggest no go would be NTR.
Kind of surprised how many said female protag, I like those, well if you can pick a lesbian or almost all lesbian path that is.
Have really enjoyed this one. Haven't played the latest release yet and might end up waiting till the next one. As for art style, while not normally my cup of tea I found it growing on me and now quite like it.