alternatehistory.com

A significant part of the rank-and-file members of the Left Socialist-Revolutionary Party and some party leaders did not support the actions of their leadership. The party split, and in September 1918 the The Party of the Populists-Communists and the Party of Revolutionary Communism stood out. Also part of the Bolsheviks withdrew from the government, and was close to the ideas of syndicalism.
Also interesting is the group of SR-Maximalists, which arose in 1906, propagandizing the ideas of the "Labor Republic". But they lost leadership even before the First World War.
What we get is a group of former Bolsheviks and Left SRs that combine Marxism, syndicalism and narodnichestvo. The party is very weak, since the party is very weak and its leadership has been for a long time in the prison.
Possible guidance:
Alexandra Mikhailovna Kollontai (Left the Council of People's Commissars after the signing of the Brest-Litovsk Peace Treaty, most likely she will serve a term for participation in the "October Break", a well-known feminist, and one of my idols).

Sergey Pavlovich Medvedev

Yurii Khrisanfovich Lutovinov (The politician of the Donetsk-Krivoy Rog Republic, possibly, will be engaged in revolutionary activity in the Kingdom of Ukraine)

Vladimir Ivanovich Nevsky

Andrei Lukich Kolegayev