There are no "one in all" references even within a specific genre, history or culture. Modern collectors and those truly researching for recreation are the true sources. While I do occasionally do such measurements for the 60 odd swords I own (most of them 18th and 19th century), I have a long way to go even for my own research. I can say that current producer of swords from those two centuries of western typically miss the mark by a large margin.
There was and is a wide variance even within a single niche, so compiling extensive data takes time and money. Yes, nothing is truly for free. Some makers spend a lot of money and travel to compile data for even just a handful of swords. This is very true of collectors as well. I could offer a few thumbs of rule and generalize a good bit about 18th and 19th century swords but it would hardly be complete across even a decade and one country.
I will spend a lifetime (what I have left, some decades hopefully) concentrating on a few decades of American history from the revolution to the civil war. Narrowing that even further to the 1790-1820 period. Again, I could generalize and point out that past that point, less thought was put into traditions of handling right back to the Norman invasion of the British isles but it would be just that, a generalization.
What we see of premium modern reproductions and recreations might be similar generalizations aside from specific swords and I mean specific sword examples. Pick up a another sword of the same period and one can begin to generalize.
We see a very few vendors such as Kult Of Athena, where they offer some distal taper information over a wide span of all cultures and types but that doesn't really reflect the properties of original swords unless the makers have spent the time doing research.
All that said, the best sources for information are the researchers themselves. If I ever do publish a book on Federal Period American swords, the statistics would only mention the same generalizations of a very narrow cross section of history. Even if I listed my own collection, little would understood by many as those same basic principles summed up in a few paragraphs.
Buddy up with a few museums (or start collecting) and pick up the calipers yourself
Cheers
GC