is there any anime or manga that you like that but not many people know about?

Yes.

• xxxHolic. Totally deserves more fans. My friends who I've showed it to say it's boring, but that couldn't be farther from the truth.
• FLCL. I just started/finshed it (It's so short; only six episodes). So bizarre and epic. X3
• Sands of Destruction/World Destruction. I'm surprised if anyone on here has even heard of this anime.

Also a lot of manga. There was a time I would park my ass for hours and just read random manga on an app I have. I don't feel like listing all of them because I'm lazy.

Pavane for a dead girl by Koge Donbo

Yep. Chrome Shelled Regios.

Yeah there are a few that comes to Mind,like er Nurse Witch Komugi,Taisho Baseball Girls,Ore no Imouto ga Konnani Wake ga na,Amagami SS..and those are the main anime(s) that come to mind now.

Arakawa Under the Bridge
The World God Only Knows

Panty and Stocking With Garterbelt :/ it only has 13 episodes

Sakura Taisen,
+Anima,
Touhou Project,
Shufuku no Campanella,
Chobits, (wait I guess that's pretty known, huh)
aaaaaaaaaaaand that's all I can think of at the moment.

This is from Touhou Project.

anime: no.6, kyou kara maoh, fullmetal panic

manga: way too many to put on here (pretty much all yaoi manga though)

-The World Only God Knows
-Ore no Imouto ga Konnani Wake ga na
-Steins;Gate
-Deadman Wonderland
-Black Jack
- Welcome to the NHK

I love all these animes. I find it sad that a majority of people don't recognize the titles, I feel like I'm the only fan who actually watched this list ;n;

Keroro Gunso, nobody really knows that anime but it's so funny and cute! ^^

The twin sister of the the wonder star.
It's a little kid lush,but funny,and it was way better than I thought it was. It's more popular in china than its in u.s, its a Japanese anime.