So I watched Clannad and Clannad After Story. Bawled my eyes out like you wouldn't believe. And now I want more. What animes can you suggest that are in the same line as Clannad that will bring me to tears or give me a super happy ending to a really cute relationship.
Sci fi is kind of a turn off but if it's really well animated I'll make an exception.
BAMF on dudes.
The only relationshipy anime I have ever watching and I am kind of ashamed to admit this was Spice and Wolf, it was actually pretty good and seems along the lines of what you are looking for.
I second this entire list. I don't remember Angel Beats at all, but I do remember the ending making me cry like a little bitch.
Chuunibyou demo Koi ga Shitai! is an anime that is airing currently that has been doing some tear jerking.
bleach
Something sad? How about Death of the Fireflies, or Grave of the Fireflies. Film about chidren's survival during war.
Ichigo 100% isn't exactly sad, but the romance was awesome and the ending had me thinking ''why?''
Chobits is sadder. It's actually cute, but suggests a dark and heavy theme.
Code Geass is my personal favorite. Plot twists, characters you can love or hate, romance and a dash of fan service. The ending had me thinking of what might happen next. The OST was phenomenal, it was timed perfectly with the scene. Ending had me tear up a little.
Sword Art Online has a hint of sadness, and my second favorite. I love the concept and romance. The first season's ending theme was beautiful.
This one isn't for the anime part. This is for the crying part. Hatchi was really sad. It really made me cry.
I can't think of anything else right now. I'll come back when I think of more.
Xam'd: Lost Memories had a really emotional ending from what I remember. Fantastic anime. I think the dubbed version is on Netflix still, but I recommend THORA's fansub from ages ago because I can for-sure say the acting is up to par. Plus, those guys in the fansubber community are very passionate about superb video quality, haha. They do good work.
edit: critical spelling error
My probably favorite 2 Anime are: FullMetal Alchemist and DeathNote. FMA can get relatively deep and DeathNote is just THAT anime that you must watch, it's incredibly brilliant.
Fucking Anime.
If you ask me, it's as bad as being a "brony"
Workahloics is a good anime
I haven't found an anime as sad as Clannad/After Story mainly because the endings are very melodramatic.
Ano Hi Mita Hana no Namae o Bokutachi wa Mada Shiranai - Good opening episodes, ending is bad because its extremely melodramatic
Chuunibyou demo Koi ga Shitai! is getting pretty good/sad
Angel Beats is another feel fest.
but the grand daddy of them all, would probably be Clannad/Clannad:afterstory. I have never cried so much.
HEY, real men cry deeply to slice of life
Death Note and Sword Art Online are definetley my 2 faves, steins gate and code geass, highschool of the dead they were all good ones too
If you want the gaurantee of crying its definetley Grave of the Fireflies.
Here's what you should do. Search for anime/ manga using genres that you like, or by just using Google( preferably a finished one, but an open one might be better as well). Then start reading it. Then get attached to it. Then finish it.
Trust me, after finishing one, I always get depressed and empty inside. Sometimes I tear up. And if it's something I really got attached to, I'd be depressed for days/ weeks and be thinking about it every other second.
Elfen lied is targeting audience like you, all I can say.