What have Du read already so I can avoid suggesting things you've already seen?
I'll assume you've read all the beliebt titles like Fruits Basket, Ouran High School Host Club, Kaichou wa Maid sama, Fullmetal Alchemist, Blue Exorcist, Beelzebub,
I'm Mehr into action myself so I don't know that many Romantic Comedies, but I'll try to stick to that category
- Iris Zero; its set in a world where everyone has a special power called an Iris except the main character, its very sweet
- Dengeki Daisy; a girl who's brother has recently dies is watched over Von a mysterious protector and she tries to find out who it is while overcoming other problems, its better then I'm making it sound
- Lovely Complex; slice of life Manga a tall girl and a short guy who are both embarrassed Von their heights begin to like each other but cant admit it because of their complexes
- Beast Master; Von the guy who does Dengeki Daisy, really short, only around 8 chapters long, about a girl who befriends the new guy at her school who when he thinks hes in danger goes crazy and shes the only one who can calm him down
If Du like things with a bit Mehr action then Du should read
- The Breaker; kid is getting bullied so badly he wants to die but is saved Von his substitute English teacher who he blackmails into teaching him how to fight, its very fast paced and the plot is Mehr complicated then it sounds
- Witch Hunter; Witches are at war with humans and the main character is part of the group fighting against them. However his sister is a witch and he wants to save her, but shes being manipulated Von other Witches, theres also a lot of other stuff going on to do with his Friends backgrounds and his helper called Halloween
- Psyren; Theres a rumor about a weird game called Psyren, no one knows what it is, but after an old friend disappears the main character agrees to play in order to find her
theres another thread of someone asking a similar Frage
link