My ATL sees a totalitarian Russia that's like a larger-scale Fascist Italy with elements of Stalinism (because Russia is Russia, not Italy, there will be some similarities). That ATL's POD is in the 1860s, the fascist dictatorship rises under one of the historical White Leaders, and like the Stalinists benefits from what other people already did. It has a larger overall population but a much more formidable and militaristic society and also a larger land area, which in the context of the ATL WWI leads to in the interwar period a strong Russophobic element in German politics.
That, admittedly, is probably outside the context of the OP. For the OP's concern, the rise of White Russia has several basic insurmountable difficulties and is likely to lead to greater overall chaos than the USSR did. Its circumstances butterfly away Nazism as we knew it, but Fascist Italy will still show up and still inspire a German fascist movement. Whether or not said movement takes power or not is a different question.