Can you please tell me some good mangas were are comedy, romance,shoujo, cute boys or whatever(Im not the kind of girl that like yaoi)

You should try reading Fruits Basket.

you should try shugo chara

I would say Gundam 00; it's a great anime and it has very sad parts, very funny parts, and a lot of SUPER CUTIE GUYS! This picture only has 2 out of 10 cute guys.
(Warning: if you see this and don't like it, then please tell me.) Thanx.

Well, I'd suggest you try Beauty Pop. It's one of my favorites. It is a comedy/romance series, I know for sure. I'm not sure about the shoujo part but it is kind of shoujo. (Main character is a girl) There are some cute boys in it, though not alot. The story's main focus is on Kiri Koshiba, a gifted hairstylist.

If you don't like Beauty Pop, I highly recommend Ouran High School Host Club. Highly! It is a comedy/romance/gender bender/shoujo/school life series by Bisco Hatori that includes cute boys. (It is a Host Club after all) The story centers around Haruhi Fujioka, a commoner that attends a rich school. (She is an honor student) One day, she is looking for a place to study, and she steps into the host club. She accidently breaks a very expensive vase and so, she has to become a host to repay the debt. Thus, her host club life begins.

Also, Special A is a good comedy/romance/school life manga series.

Gakuen Alice is an absolute must read! Natsume and number of other guys are pretty darn cute xP
Good Witch of the West is a good fantasy shoujo if you're into a bit of magic and sword play =]
DNAngel is a great choice..but sadly the manga has stopped T T
Arakure/Wild Ones is a really cute romance, shoujo there are a couple lookers in it ;D lol
And Kamichama Karin is a good read :D
Oh! My personal favorite Ranma 1/2 is a perfect romantic-comedy =3 Also a great read