I don’t know a specific resource, but as a longtime steel rider I give this observation.
It’s not the brand of steel, it’s how it’s put together. Any top-drawer steel frame will come with the best tubing. Your task is to choose the geometry, tube diameter (ie, stiffness), features, color, etc. that make you excited to get on your bike.
It’s all good, so don’t get “analysis paralysis” over the decision. The Italian bikes all have the right geometry. The top N. American steel makers do, too (Cervelo, Sachs, Rivendell, Holland, Serotta). Talk with the builders of the N. American makers directly. Talk with a good retailer about the Italian brands. Don’t try to get the decision about what alloy to buy perfect. Frankly, I think the color of the bike is more important once you’re dealing with the best tubing (the tubing is all the same at this level). After all, if you don’t love your bike, will you ride it?
When I got it narrowed down, I realized there were several choices that would suit me. I went with a custom Holland because (a) he’s here in San Diego and I could visit in person, and (b) his painter, Joe Bell, does stunningly beautiful work. My bike is Tange Prestige tubing, and I asked Holland last summer if there was anything better out today, and he said no, it’s all the same – just new names and marketing brochures.
By the way, I bought my current frame in 1991. It’s been through 3 complete gruppo upgrades, 4-5 sets of wheels and bars and seats, one top tube replacement and two carbon forks. But the frame is still state of the art, and weighs less than a commercial titanium frame of similar size, geometry and stiffness.
Steel is real!