I do find a lot of very industrial suggestions in this thread, so here are a few names off the beaten paths - most are from Poland :
-
Purity vodka : a Swedish vodka that is very clean and crisp, usually popular with "modern" vodka drinkers (very distilled and filtered, hence the name)
-
Polugar : the opposite, it's made in a "vintage" style by Russians in Poland since it's hard to make non-wheat vodka in Russia since the late 19th century; I recommend their "Rye&Wheat" (N°1) if you like "flavorful" white vodkas ; they also have Rye vodkas to go back in time to the 18th century
-
Kavka vodka : in between these two, a vodka with a twist with little filtration and a drop of prune/apple eau-de-vie to add a little roundness like in the good old days
If you want to go crazy with weird yet traditional vodkas, there is also
Vestal, a potato vodka that used to have "potato vintages and terroirs" variants that were really quite strong and "interesting" (ie absolutely not to my taste), I think they have a bit more mainstream offers now so worth a look...
For flavored vodkas, the choices are more industrial and sweet'n sugary but in the same vein as the Zubrowka, you have :
-
Nemiroff, the Ukrainian brand, which has a popular Honey & Pepper variant
-
Zoladkowa Gorzka, the Polish digestif, which has a popular "Traditional" flavor with herbs, spices & bitter orange ; they also have a surprising black pepper variant that's not that bad
I have more in stock if need be (and know much more about spirits than watches actually

) Cheers !