I don't usually read manga. But since i've read "Seven Days" i just want to read more. So does anyone have any suggestions...because i can't really find any shounen ai manga's.

http://www.mangaupdates.com/series.html?act=genresearch

This is helpful. I suggest checking off "manga" even though it will skip some, as you wind up with a TON of doujin that may or may not be even remotely interesting to you. Once you get to the results page, click to sort by rating. It's somewhat accurate. At least accurate in the way the the best ones are highly rated, usually. There is always some garbage mixed in. You can also click on the search page to show only completely scanlated series if need be, or only licensed series. VOILA!

I personally suggest Bokura ni Matsuwaru Etcetera.

I think my biggest suggestion wouldn't really be a manga although the did make a one shot out of the first half of the story and that's Only the Ring Finger Knows. It doesn't have any overly silly concept like some of them do it's just a story about two guys and their feelings.

But it you want something silly then there is a manga called Eerrie Queerie in which a boy can see and talk to ghosts. It's an old Tokyopop title so you might be able to snatch it up at a used book store pretty cheap I know I did.

The website http://www.aarinfantasy.com/jreviews/recently-added/ has a great database of titles and you just need to do a search. Plus you can read reviews of them. Hope that helps.

Aitsu no Daihonmei (His Absolute Favorite)

Tokyo Babylon by Clamp

Loveless

Dousaibou Seibutsu has the same easygoing atmosphere as Seven Days,if you want something like Seven Days,you should probably search up on Baka Updates: Shounen Ai,Slice of Life,maybe School life too?

Other Shounen Ai's:

Boys Next Door. . . . . . . . . . . .I LITERALLY CRIED MY EYES OUT FOR THIS ONE,IT WAS SO SAD but beautiful,it was a happy ending,kind off,MUST READ(My favorite)

Bad Teacher's Equation-It gives me this happy feeling when reading it,thought the art might look a bit old,it's worth it.Didn't finish it yet so I'm not sure if it's shounen ai or yaoi. . . . . .

UraBoku-The anime is on CrunchyRoll,though some people say it's not shounen ai,I'm pretty sure it is

Cafe Latte Rhapsody-Cute >o<

Gurechawanaidene- Funny and Cute,not the best art,but give it a try

Kaoru-kun-Kind of bittersweet

Don't worry,they're not yaoi,not sure about Bad Teacher's equation though. . . . . . . .

I'll come back later since I forgot the titles of most of the shounen ai's I read since I'm focused on yaoi,if you come around to yaoi,message me and I'll suggest some based on your taste

aitsu no daihonmei!
yuuwaku recipe

I would suggest Gravitation, Yellow, and Desire. They're all pretty old and the last one I found at a local library xD If you ever want a story that isn't very "yaoi" but with tons of cuteness of older guys, you should try Junjou Romantica, Sekai Ichi Hatsukoi and Antique Bakery.

Sekaiichi Hatsukoi and Junjou Romantic are really good but theyre yaoi

if your talking about shounen ai.... then i have to say Aitsu no Daihonmei..... it is soooo good....

but if it's yaoi then it has to be Sekai ichi Hatsukoi and Junjou Romantica

hells yeah junjou romantica. definitely. granted, it's a yaoi, not exactly a shounen-ai. but hey, whatev. lol

Loveless -It's weird and confusing and has some shojo-ai and shota
No.6 - there's just undertones until the end when the big kiss happens!

Komatta Toki ni wa Hoshi ni Kike - although warning, as much as I love the couple in this manga...they aren't actually a couple. No kissing or anything of the sort, which is a major bummer because they are ADORABLE.
Little Butterfly - this one's a tad bit yaoi though.
Yatteraneeze! - also more on the yaoi side.
No. 6 - my current obsession, but as with Komatta, the couple is not explicitly stated as such. Still, though, it's obvious that they totally dig each other ;D

I have tons that I enjoy here are a few:

1001 Nights - Jun Jin Suk
New Beginnings- Kotetsuko Yamamoto
Dear Myself- Eiki Eiki
Eerie Queerie- Shiozu Shuri
Legal Drug- Clamp (Series is on hold)

Let Dai's my favorite...I like realistic stuff. But there's really so many, and different kinds out there, it's hard to give recommendations.

Gravitation
and some people consider it shounen ai...idk if I would....but Loveless is good. The creator of it, Yun Kouga, made another manga called Earthian that is shounen ai though. Her art is very beautiful also! :O
Kusatta Kyoushi no Houteishiki is a very good read as well! It's really funny ^_^