Website for odds of opponents' holdings?

[Angrymoog]

I was curious if there was a website with the odds that an opponent will have X hand, for Y total players sitting, with Z seeing the flop?

Also, if such a list exists is it weighted to reflect the hands that an average player would fold preflop?

just as an example, I might want to know how often my pocket pair is good vs two overcards on the flop with two opponents in the hand(how often will they have a higher pair between the two of them), with 6 players folded.

I'm hoping a list exists, if not, maybe i should learn how to do the math myself and create one.