Few come to mind. When I was younger, I saw Color of Night and had the hugest crush on Jane March for years.
There's an older Japanese movie called In the Realm of the Senses which based on the notorious life of Abe Sada. I guess it's actually technically hardcore because there's some really graphic sex...at one point the actress dribble cum out of her mouth and inserts an egg inside her...but it wasn't a porno. It was a legit, albeit controversial, movie.
I rented it years ago not knowing anything about it. I was shocked.
I guess Embrace of the Vampire was OK. The DVD cost $4 on Amazon and Alyssa Milano's naked in it.
And I used to dig the Misty Mundae (or whatever she calls herself now) stuff. She's really cute/hot and the movies are dumb enough to be fun.
Also, some of the old Japanese "Pink" movies are good. Female Yakuza Tale and Sex and Fury.Stuff like that. Seeing 50 naked chicks cut down a bunch of gangsters in a warehouse is always fun.