All authors are unique and have their own style, but some of these mangaka give similar vibes!
Akabeko
Tomochi
Kuraka Sui
Tamekou
Ogawa Chise
Here’s a list of some messed up things that I also like (a lot involve psychological stuff!)
http://www.mangago.me/home/mangalist/727536/
Try these (๑•ㅂ•)و✧
http://www.mangago.me/r/l_search/?name=OGAWA%20Chise
http://www.mangago.me/r/l_search/?name=KATSURA%20Komachi
http://www.mangago.me/r/l_search/?name=Tamekou
http://www.mangago.me/r/l_search/?name=Moriyo
http://www.mangago.me/r/l_search/?name=Ogeretsu%20Tanaka
http://www.mangago.me/r/l_search/?name=Kikunosuke
http://www.mangago.me/r/l_search/?name=tatouji
http://www.mangago.me/r/l_search/?name=kashio
http://www.mangago.me/r/l_search/?name=Sai%20Naoe
http://www.mangago.me/r/l_search/?name=Minase%20Masara
http://www.mangago.me/r/l_search/?name=Sachimo
http://www.mangago.me/r/l_search/?name=Hinako
are there anymore mangakas like harada?
yaoi, adult, psychologicals? pls recommend me some with those themes!