If you like Whistlepig's 10 year product, try Masterson's 10 year Straight Rye and Jefferson's 10 year Rye (if you can find it). WhistlePig has a lot of people who strongly advocate for it over the other two, and while I like it and generally have a bottle in my house, I think some of its hype is unwarranted. IMO WhistlePig pulled the wool over people's eyes by getting them to (falsely) believe they are some sort of craft whiskey product out of Vermont via slick marketing, when in reality its a Canadian product made at Alberta Distillers (a huge producer in Calgary similar to Indiana's MGP Distillery). Masterson's, with its old west theme and name, has made a similarly veiled marketing pitch, but at least the bottle has always stated it is a Canadian product. Jefferson's, too, has masqueraded as a craft distillery, though at least they do actually produce a bunch of American bourbons.
Anyway, Jefferson's 10 year straight rye, Masterson's 10 year straight rye, and Whistlepig's 10 year straight rye are all produced at the same distillery: Alberta Distillers. Major difference is Masterson's is bottled at 90 proof vs. Jefferson's at 94 proof vs. 100 proof for WhistlePig, so
@RVACane (or anyone else who prefers a little less ABV), those may be more your speed. There are definitely some subtle differences in the flavor (Whistlepig tastes sweeter to me, for instance), which likely have to do with the difference in ABV and barrel options (they all use new American oak, but Whistlepig is finished in used bourbon barrels... not sure about the other two). Whistlepig claims it also ages (for some time, who knows how long??) its whiskey on its Vermont farm, so that could play a factor in the flavor profile.
Once upon a time, the best bang for your buck of the three was probably the Jefferson's 10 year straight rye, but the price steadily creeped up and it has been a minute since I saw a bottle at any of my choice liquor stores. I'm not even sure they still produce it or if its a seasonal thing now, to be honest.