hey :) so, i haven't read josei manga for a long time (been reading mostly yaoi) sooo, doe...

http://www.mangago.zone/read-manga/kitchen_palette/ it was pretty cute...not like harlequin or anything awful like that :P
http://www.mangago.zone/read-manga/midnight_secretary/ and all the ones by this author are good and worth reading
http://www.mangago.zone/read-manga/kingyo_sou/ shoujo but its more mature and the characters are in college for a lot of it...reads more like a Josei...only much better than most josei
http://www.mangago.zone/read-manga/shuukatsu_kimi_ni_naitei/ one of my favorites
http://www.mangago.zone/read-manga/dont_cry_girl/...its short but its...unique its unique :P probably says shoujo but it doesn't read like a shoujo...
http://www.mangago.zone/read-manga/hapi_mari/
http://www.mangago.zone/read-manga/bread_butter/ I like this one
http://www.mangago.zone/read-manga/keishichou_tokuhanka_007/ ok its hsoujo but not a school one...has a plot...and the heroine isn't a weak crybaby...the others by this author are also more grown up feeling shoujo...I'm 26 and I like it if that helps...
http://www.mangago.zone/read-manga/the_one/ again felt more mature to me not shoujo
http://www.mangago.zone/read-manga/kainushi_wa_akuma/ again didn't feel like shoujo...heroine's a woman...
http://www.mangago.zone/read-manga/cheese_in_the_trap/ although you should go to naver to read them
http://www.mangago.zone/read-manga/gokusen/
http://www.mangago.zone/read-manga/mahou_tsukai_no_yome/ fantasy story...heroine is young but mature...doesn't feel shoujo...just feels like a fantasy story...its different but I love the feel it has

ok here's some...keep in mind I'm like a happy go lucky person and so my recommendations reflect that...so if you want like something dark these may not be it...but I love them :P most of them :P

previous poster mentioned some good ones but here are some more

http://www.mangago.zone/read-manga/diamond_life/

non-idiotic harlequins:
http://www.mangago.zone/read-manga/amber_by_night/
http://www.mangago.zone/read-manga/ichiya_dake_no_princess/
http://www.mangago.zone/read-manga/unmei_no_oaite_wa/
http://www.mangago.zone/read-manga/puppy_my_love/

thanks :) i'll be sure to try those out :D