What's your Taste, OP?
I know a whole mess of em. Uncensored cause I don't do mosaic/censored cause I consider them a form of digital STD.
Do you want fetish based or vanilla?
More hard sex scenes or more story driven?
Duration, as in, a series or one shots?
The most vanilla Hentai I have ever come across, If I remember correctly, was Endless Serenade. It mentioned death, but that's about it. I've never truly run across a fully vanilla Hentai, Ever. There is always some element that just stains the ova/series.
Things I CAn remember off the top of my head:
Hottest
Legend of the Pervert
Plenty of Pretty Sister
Swallowtail Inn
Most Convoluted(incoherent) Story
Moonlight Lady
Most Effed Up, (Might want to steer clear of these)
Pigeon Blood
Crimson Climax
Gold Throbber(I think that was what it was called)
Milk Money
Cutest
Maids in Dream
The Story of Little Monica
Long Series
Daikuji(Spelling is off)
LA Blue Girl
Discipline
Isaku/Shasaku/Kisaku (Aka, The Letch)
BB
Dragon Pink(I think)
I would be far more actively in the know, had it not been for the sudden decrease of 'interest' that caused Uncensored Hentai Ovas to vanish a few years ago. SOO many current Hentai Ova's I want uncensored, yet 'can't' because of "reasons". Would seriously pay legit money to get them back, but can't because of how all the complex incompatibilities that plague the combination of anonymity, Pr0n, and money distribution 'rules' regarding their stance on Pr0n work.
>Also if you do, you have a torrent link/site or a good streaming site for only this?
All the ones I remember are long dead. BUT, you might be able to find some (maybe) if you look up terms for a title of a hentai OVA. There was a few ova titles that yielded great results, but I don't remember them cause they were romiji titles.