You beat it 100%? How did you not kill yourself after having to torture yourself with the bad endings? I saw ONE PICTURE of Hanako's bad ending on the internet and I felt like someone ripped out my soul and lit it on fire!
OH, Saya no Uta is pretty good. Really short though and only 3 different endings that are easy to get so it's readable in one weekend or so. But pretty good while it lasts.
Since you don't know others I'll just slip through that another good one is Ever17. The only downside of this one is that midway it can get awfully boring, but the patience is worth when you get to the final path. Has probably the best plot twist I've seen in the history of everything.
Other than those well, Sengoku Rance is damn amazing (although more of a videogame than a vn), Umineko and MuvLuv (personal fav) are pretty good VNs too but really long.
And I'll see if I finish kanako shoujo because I haven't yet
Umineko is 8 "episodes" long total. Has no routes, it's just reading with no choices and huhmmm, I didn't play Katawa Shoujo enough to compare, but from what I know about it I guess the time it takes to finish all the routes in it must be enough to read 2 or 3 episodes of Umineko. Btw the art in Umineko can be really annoying when you start, but the holycrapamazing soundtrack makes up for it. And avoid the Umineko animu because it's an awful adaptation.
As for MuvLuv, it's 3 games (muvluv extra, unlimited and alternative... I think there's at least one spinoff game but I didn't read it). I guess each of them have similar lenght to KS. Extra is mostly a harem vn with different routes (katawa shoujo without cripples), and it's an intro to the other 2 games that actually have a plot with heavy drama and stuff really gets interesting, mostly on the last one.
Aww well, I guess that's a bit of a downside, I also checked out some screenshots of the game art lmao I hope that's a joke, but I guess it can provide some nice laughts from time to time. And I doubt I'd watch the anime anyways as I'm a really lazy anime-watcher (or more like easy-to-quit).
That one might be interesting if it's somehow similar to KS, as a game easy to catch up after it dunno. Could try to wiki it to find out more of it.