I've done the peaceful revolution path and this is what I did.

1. Kerinsky dies and the assassin gets the death penalty

2. Let socialists protest, crackdown on nationalists and try to negotiate with the radicals.

3. Call for Snap Elections and allow NSP to participate in them

4. NSP wins elections and forms a popular front

5. Choose either a Radical Socialist, Syndicalist and/or a Menshevik as your economic minister and make sure to pick ''strengthen trade unions'' so you can open up that path towards ''Restoring the dictatorship of the proletariat focus.''

6. After restoring the Russian SSR wait for an event to pick a government and create said government through the events that will appear.