Like carve out a place between Russia, Belarus and Ukraine in the former Pale of Settlement. Establish a bunch of Yiddish language schools there. Have it become a center of Jewish culture. Sure, there are already Ukrainians, Russians and Belorussians there but there were already people in the far east too.
No, sorry, I'd probably have more to say about it if I actually read about them to any meaningful degree. When I talk about the German one being "wildly overstated" I'm referring to times I've seen it brought up somewhere like :reddit-logo: and in a conversation with a very reactant historian who said "some" estimates of the death toll are six-figures.
Regarding that last part, the estimate he was referring to turned out to be one that came from the West German government, literally the most negatively-biased source you could get on the topic. [I believe it was prior to reunification, West] Germany even later produced another study that lowered the estimate by an entire order of magnitude. Obviously that's still not exactly the lowest estimate, but it shows how hysterical the six-figure one is that it was abandoned even by motivated sources.
Most of the Germans literally still live in Central Asia or their children do iirc