Curious if any currently open altcoin exchanges provide this level of detail?
Binance offers a lot of details for any given coin.
When you are on the trading page of any coin, you will notice a hyperlink right below the trading pair name.

Just click on this link, and it will redirect to a "research" page, which contains ample of information along with coin's meta details(websites,whitepaper,explorer etc).
I checked some shitcoin's research page and it even contains East hemisphere vs West hemisphere trading details. Pretty cool imo
I hope this is what you were looking for.