http://www.mangago.zone/home/mangalist/60089/ here are some :D
You didn't specify which genre you prefer so hopefully you don't mind the different demographic genres :)
http://www.mangago.zone/read-manga/ikujinashi_no_spectator/
http://www.mangago.zone/read-manga/boku_no_kirai_na_otouto/
http://www.mangago.zone/read-manga/sora_o_daite_oyasumi/ (it seems this one will be forever on hiatus T.T)
http://www.mangago.zone/read-manga/acid_town/
http://www.mangago.zone/read-manga/caste_heaven/
http://www.mangago.zone/read-manga/sukijanaitte_hyakkai_tonaeta/
http://www.mangago.zone/read-manga/bastard_hwang_youngchan/
http://www.mangago.zone/read-manga/kami_sama_ki_sama_o_koroshitai/
http://www.mangago.zone/read-manga/prison_lab/
http://www.mangago.zone/read-manga/devils_line/
http://www.mangago.zone/read-manga/tokyo_ghoul/
http://www.mangago.zone/read-manga/tokyo_ghoulre/ (sequel)
Ok this one is very very hardcore and not for everyone recommendable!! http://www.mangago.zone/read-manga/battle_royale/
The plot is very similar to the Hunger Games (but not a rip-off!) but much much more graphic and gore!! Killing Stalking, etc seems like mild in comparison! I couldn't finish it but I really would like to finish reading it in the future. (Maybe...)
So be careful. o/
Ehm...Killing Stalking?
Boku no Pico is pretty messed up...
Ah, try Links ( http://www.mangago.zone/read-manga/links/) It has a Harada style-like structure.
omgg tyy!!
I'll be sure to read it rn thank u!! <33 (๑•ㅂ•)و✧
you're welcome :3
There’s one called Choco strawberry vanilla it’s pretty warped
anything that has a messed up main character, plot etc, OR is plot heavy. I've read everything by Harada unfortunately so it'd be nice if you could recommend me something new. I've just recently read warehouse and that's also pretty good. (has to make sense w/ good art style) I'm sorry lol i'm very specific ლ(´ڡ`ლ)