can anyone recommend me a worthy shoujo manga?

Ouran High School Host club is hilarious and it has romance if that's what you're looking for. Also Her Majesty's Dog is good and has romance, action and Supernatural stuff.

Sailor Moon!
It's lulzworthy.
IF YOU'VE ALREADY READ IT, READ IT AGAIN.

♥Kyou koi wo Hajimesasu♥
♥Dengeki Daisy♥
♥Absolute boyfriend♥
♥OHSHC♥
♥Kodomo No Omocha♥

I recommend:
- Barajou no Kiss
- S.L.H - Stray Liebe Hearts
- Junketsu+Kareshi
- L-DK
- Dengeki Daisy
- Torikagosou no Kyou mo Nemutai Juunintachi
- Shinobi Life
- Reimei no Arcana

~Kimi ni Todoke
~Special A
~Gakuen Alice
~Ouran High School Host Club
~Kaichou wa Maid-sama!

1.Gakuen alice
2.ouran high school host club
3.Crescent moon
4.special a
5.beauty is the beast
6.backstage prince
7.beast master
8.vampire knight
9.shugo chara
10.fruits basket
11.tokyo mew mew
and i think thats it hahaha if i come up with anything else ill Kommentar ahha hope this helps :D
the picture is of beast master which is one of my Favoriten :]

Ouran high school host club,fruitsbasket,vampire knight,apsolute boyfriend,fushigi yuugi and anything be yuu watase. hope that helped u:)^_^

I suggest Kimi-ni-Todoke "From me to you".