Years ago, I started my pipe tobacco blending excursions with a blend from Cornell & Diehl. It was one of their many English blends that contained Lemon Virginia, Latakia, Izmir and Perique. I've forgotten the name of that blend. I called Cornell & Diehl to discuss their possibly tweaking the blend for me. No problem.
Bailey's Front Porch
Craig Tarler was still alive then, and over the phone he willingly divulged the exact percentages of the components in that blend, and we settled on a couple of adjustments for my custom blend. Since Craig died a few years ago, the company was purchased by a marketing firm, and no longer makes up custom blends, as far as I can tell from the flashy and new and nearly useless website.
But, if you want to sample a range of possibilities (without knowing the exact proportions), Cornell & Diehl offers dozens of superb blends (and shredded blending ingredients) in all categories of pipe tobacco. Plus, they have gobs more tinned tobacco blends. C&D tobaccos are known for nearly undetectable amounts of the gooey casings found in most other brands. Commonly found bulk brands, like Lane, Mac Baren, and many others, are cheap tobacco. C&D is among the best.
I discovered yesterday that SmokingPipes.com is running a 15%-off sale on C&D bulk tobaccos, offered in ounce and pound quantities. As an example, many of their aromatic as well as English blends are going for around $30 for a pound. (Typical tinned pipe tobacco is sold everywhere for about $12+ for a 1.5 oz. tin.) The sale runs through the end of March.
https://www.smokingpipes.com/tobacco/by-maker/cornell-diehl/bulk/
I don't think I could figure out much from their aromatic blends, but with an English blend, it is possible to roughly deconstruct the recipe from the listed ingredients, and by separating the 4 or 5 components with tweezers, you can get a first guess at how to make it with whole leaf from WLT or home-grown. (C&D also offers cut Perique for blending, if you don't want to make your own.)
Bob